CN113076863B - Evidence consolidating method for field law enforcement - Google Patents

Abstract

The invention relates to the technical field of information security, in particular to a method for solidifying evidence for on-site law enforcement, comprising: S1, collecting images of the law enforcement scene; S2, extracting image data, and judging whether the image data has changed: if the image data has not changed, proceed to S3 ; If the image data changes, return to S1, collect the law enforcement scene video, and proceed to S3; S3, identify the law enforcement scene image or the law enforcement scene video, and obtain the law enforcement scene image or the item information in the law enforcement scene video; S4, the law enforcement scene image Or the law enforcement scene video is tested, when the law enforcement scene image or the law enforcement scene video passes the test, the law enforcement scene image or the law enforcement scene video is used as the original image evidence, and the original image evidence is uploaded; S5. Store original image evidence and electronic stamps of evidence. The present invention solves the technical problem that important evidence is likely to be missed when collecting evidence in the prior art.

Description

A method of solid evidence for on-site law enforcement

technical field

The invention relates to the technical field of information security, in particular to a method for solidifying evidence for on-site law enforcement.

Background technique

With the development of science and technology, digital technology plays an increasingly important role in social life and is also widely used in the field of law enforcement. For example, use digital technology to collect photos or audio and video files of on-site law enforcement, upload them to the server, and use them as electronic evidence. While bringing convenience, it is difficult to ensure that the electronic evidence uploaded to the server will not be tampered with, resulting in the inability to guarantee the legal effect of electronic evidence.

In this regard, Chinese patent CN106657049A discloses a method for collecting and fixing electronic evidence in real time, including the following steps: the client collects original evidence in real time through a collection device; the client uploads the original evidence to the evidence fixing server in real time; Evidence generates electronic evidence stamps, and saves the electronic evidence stamps in the memory; also discloses a system for real-time collection and fixation of electronic evidence, including collection equipment, evidence fixation server, evidence storage server and storage; use "real-time collection and real-time fixation" The idea has the effect of ensuring that electronic evidence cannot pass verification if it is tampered with after collection, thereby effectively guaranteeing the legal validity of electronic evidence.

For on-site law enforcement, the evidence collected is mostly pictures or images of the law enforcement site, and the collection of pictures or images is intermittent. The corresponding function of the image. When emergencies occur on the scene of law enforcement, in order to more realistically reflect the actual situation, it is necessary to activate the video recording mode to avoid failure to capture important evidence on the scene in time due to operational delays. Therefore, in the above technical solution, although it can be ensured that the electronic evidence is not tampered with after collection, important evidence is likely to be missed when collecting evidence.

SUMMARY OF THE INVENTION

The invention provides a method for solidifying evidence for on-site law enforcement, which solves the technical problem that important evidence is likely to be missed when collecting evidence in the prior art.

The basic scheme provided by the present invention is: a method for solidifying evidence for on-site law enforcement, comprising:

S1. Collect law enforcement scene images, and send law enforcement scene images;

S2. Extract image data according to the image of the law enforcement scene, and determine whether the image data has changed: if the image data has not changed, go to S3; if the image data has changed, return to S1, collect the law enforcement scene video, and send the law enforcement scene video, go to S3;

S3. Identify the law enforcement scene image or law enforcement scene video, and obtain the item information in the law enforcement scene image or law enforcement scene video;

S4. Detect the law enforcement scene image or the law enforcement scene video based on the item information according to the preset detection algorithm. When the law enforcement scene image or the law enforcement scene video passes the detection, the law enforcement scene image or the law enforcement scene video is used as the original image evidence, and the original image is uploaded. image evidence;

S5. Generate the evidence electronic stamp according to the original image evidence, and store the original image evidence and the evidence electronic stamp.

The working principle and advantages of the present invention are:

(1) Considering that the evidence collected is mostly pictures or images of the law enforcement scene, the collection of pictures or images is intermittent, and it is difficult for intermittent pictures or pictures to reflect the actual situation when emergencies occur at the law enforcement scene. Therefore, Collecting video when the image data changes can avoid important evidence that is not captured on the scene in time or that important evidence is missed.

(2) The collected law enforcement scene images or law enforcement scene videos may have nothing to do with the law enforcement process. Before fixing them, identify them to obtain the item information in the law enforcement scene images or law enforcement scene videos. The designed detection algorithm detects the image of the law enforcement scene, and only saves and fixes it if it passes the detection, so as to ensure that the fixed original image evidence is the evidence related to the law enforcement process.

When the image data changes, the present invention switches from capturing images to capturing videos, which can avoid important evidence that cannot be captured on site in time, and solves the technical problem that important evidence is likely to be missed when collecting evidence in the prior art.

Further, in S4, when the law enforcement on-site image or the law-enforcement on-site video fails the detection, return to S1, and re-collect the law-enforcement on-site image or the law enforcement on-site video.

The beneficial effects are: when the law enforcement scene image or the law enforcement scene video fails the detection, the detection result is fed back to the collection step, which is beneficial to correct the deviation of the collection process and improve the collection efficiency.

Further, in S1, a picture of the law enforcer is collected, and the picture of the law enforcer is sent; the scene picture is collected, and the scene picture is sent.

The beneficial effect is that: in this way, both the images of the law enforcement officers and the scene images can be collected. Compared with simply collecting the images of the law enforcement officers or the scene images, it is more conducive to truly and accurately restore the specific details of the law enforcement scene. Happening.

Further, in S1, the sound of the law enforcement scene is also collected and sent; in S4, when the law enforcement scene image or the law enforcement scene video passes the test, the law enforcement scene sound and the law enforcement scene image or the law enforcement scene video are used as the original image evidence together. And upload original image evidence.

The beneficial effects are: in this way, while collecting the law enforcement scene images, the law enforcement scene sounds are also collected, and the law enforcement scene images and the law enforcement scene sounds are uploaded together as original image evidence, which is convenient for the staff to find out the facts of the case in time.

Further, in S1, the location of the law enforcement scene is also collected and sent; in S4, when the law enforcement scene image or the law enforcement scene video passes the detection, the law enforcement scene location and the law enforcement scene image or the law enforcement scene video are used as the original image evidence together, And upload original image evidence.

The beneficial effect is: in this way, the location of the law enforcement site is also collected while the images of the law enforcement site are collected, and the location of the law enforcement site and the sound of the law enforcement site are uploaded together as original image evidence, so that it is convenient for the staff to determine the specific location of the case. to facilitate follow-up investigations.

Further, in S4, when the law enforcement scene image passes the detection, while uploading the original image evidence, the scene law enforcement order is generated according to the original image evidence.

The beneficial effects are: in this way, the on-site law enforcement order can be obtained after collecting the law enforcement on-site image, which is beneficial to the subsequent arrangement of relevant evidence, thereby improving the efficiency of evidence management.

Further, it also includes S6, which outputs the on-site law enforcement order.

The beneficial effect is that in this way, the on-site law enforcement form can be output in the form of paper or electronic version, which is convenient for the parties to confirm and sign on the spot.

Description of drawings

FIG. 1 is a flow chart of an embodiment of a method for solidifying evidence for on-site law enforcement according to the present invention.

Detailed ways

The following is a further detailed description through specific embodiments:

Example 1

The embodiment is basically as shown in Figure 1, including:

S1. Collect law enforcement scene images, and send law enforcement scene images;

S2. Extract image data according to the image of the law enforcement scene, and determine whether the image data has changed: if the image data has not changed, go to S3; if the image data has changed, return to S1, collect the law enforcement scene video, and send the law enforcement scene video, go to S3;

S3. Identify the law enforcement scene image or law enforcement scene video, and obtain the item information in the law enforcement scene image or law enforcement scene video;

S4. Detect the law enforcement scene image or the law enforcement scene video based on the item information according to the preset detection algorithm. When the law enforcement scene image or the law enforcement scene video passes the detection, the law enforcement scene image or the law enforcement scene video is used as the original image evidence, and the original image is uploaded. image evidence;

S5. Generate the evidence electronic stamp according to the original image evidence, and store the original image evidence and the evidence electronic stamp.

The specific implementation process is as follows:

First, collect the images of the law enforcement scene, for example, use a camera to collect, and send the collected images of the law enforcement scene. In this embodiment, the camera includes a forward-facing camera and a rear-facing camera; wherein, the forward-facing camera captures and sends the image of the law enforcement officer; the rear-facing camera captures the scene image and sends the scene image. That is, the images of the law enforcement officers and the scene images are collected at the same time, and the images of the law enforcement scene include the images of the law enforcement officers and the scene images; wherein, the images of the law enforcement officers include identifiable information such as the photos of the law enforcement officers, the clothes of the law enforcement officers, the work cards of the law enforcement officers, etc. The screen contains information on seized items, confiscated money, and on-site conditions.

Then, the image data is extracted according to the image of the law enforcement scene, and it is judged whether the image data has changed. For example, an image model is stored in advance. The image model can be a face model, a head model and/or a license plate model. After using the existing image extraction algorithm to extract the image data from the image of the law enforcement scene, it is detected whether the image data includes the image model. , that is, whether the head, face and/or license plate are included; and determine whether the position of the head, face and/or license plate in the screen has changed, if the position of one of the head, face and license plate in the screen has changed , it can be determined that the image data has changed, return to the collection step, collect the video of the law enforcement scene, and send the video of the law enforcement scene, and proceed to the next step; if the position of the head, face and license plate in the screen has not changed, it can be determined that the image data No change, go to the next step.

Then, the law enforcement scene image or the law enforcement scene video is identified, and the item information in the law enforcement scene image or the law enforcement scene video is obtained. In this embodiment, an image recognition algorithm is used to identify the image of the law enforcement officer and the scene image: for the former, it is necessary to identify whether there is official clothing, such as police uniforms and police badges, in the image of the law enforcement officer; for the latter , to identify whether there are items under inspection in the scene, such as fake cigarettes and shoddy products; these identified police uniforms, police badges, fake cigarettes, and three-no products are the item information in the image of the law enforcement scene.

Next, the law enforcement scene image or the law enforcement scene video is detected based on the item information according to a preset detection algorithm. The reason why it is necessary to detect law enforcement scene images or law enforcement scene videos based on item information is for a specific law enforcement activity. In this embodiment, taking tobacco law enforcement as an example, it is necessary to compare the item information with the preset item information related to tobacco law enforcement, and the preset item information related to tobacco law enforcement is police badge and tobacco: If the identified item information includes police badges and fake cigarettes, the comparison results are consistent, indicating that the collected law enforcement scene images or law enforcement scene videos are images or videos related to the tobacco law enforcement process, that is, law enforcement scene images or law enforcement scene images. If the video passes the test, the law enforcement scene image or the law enforcement scene video will be used as the original image evidence, and the original image evidence will be uploaded; if the identified item information includes police badges and fake wine, then the comparison results are inconsistent, indicating that the collected law enforcement scene The image or law enforcement scene video is an image unrelated to the tobacco law enforcement process, that is, the law enforcement scene image or law enforcement scene video fails the test, and a re-collection instruction is sent at this time to re-collect the law enforcement scene image or law enforcement scene video. Therefore, when the law enforcement scene image or the law enforcement scene video fails the detection, the detection result can be fed back to the acquisition step, which is beneficial to correct the deviation of the acquisition process.

In addition, when the law enforcement scene image passes the inspection, while uploading the original image evidence, the scene law enforcement order is also generated according to the original image evidence. For example, a law enforcement form template for tobacco law enforcement is preset, and the law enforcement form template is provided with multiple image filling areas, and the original image evidence, that is, the law enforcement scene image (including the image of the law enforcement officer and the scene image) is filled into the image filling area, that is, The on-site law enforcement order can be generated, so the on-site law enforcement order can be obtained after collecting the image of the law enforcement scene, which is conducive to the subsequent arrangement of relevant evidence, thereby improving the efficiency of evidence management.

Next, an electronic evidence stamp is generated according to the original image evidence, and the original image evidence and the electronic evidence stamp are stored. For example, take an obfuscation key from the obfuscated key pool and assign a random scramble code to the original image evidence, so as to generate an electronic evidence stamp based on the original image evidence, random scramble code and obfuscated key, and save the evidence electronic stamp to the solid state drive.

Finally, the on-site law enforcement order is output, for example, using a mini printer to print, so as to realize the printing of the on-site law enforcement order.

Example 2

The only difference from Example 1 is that,

First, in S1, the sound of the law enforcement scene is also collected and sent. For example, a pickup or a voice recorder is used to collect the sound of the law enforcement scene; when the law enforcement scene image or law enforcement scene video passes the test, the law enforcement scene sound and the law enforcement scene image are collected. Or the law enforcement live video is used as the original image evidence, and the original image evidence is uploaded. In this way, while collecting the images of the law enforcement scene, the sound of the law enforcement scene is also collected, and the images of the law enforcement scene and the sound of the law enforcement scene are uploaded as the original image evidence, which is convenient for the staff to find out the facts of the case in time.

Second, in S1, the location of the law enforcement site is also collected and sent. For example, the GPS positioning device is used to collect the location of the law enforcement site in real time and send the location of the law enforcement site; when the law enforcement site image or law enforcement site video passes the test, the law enforcement site The location and the law enforcement scene image or law enforcement scene video are used as the original image evidence, and the original image evidence is uploaded. In this way, while collecting the images of the law enforcement scene, the location of the law enforcement scene is also collected, and the location of the law enforcement scene and the sound of the law enforcement scene are uploaded as the original image evidence, which is convenient for the staff to determine the specific location of the case and facilitate subsequent investigation.

Example 3

The only difference from Embodiment 2 is that, in this embodiment, the technical idea of “photographing first and then deleting” is adopted, that is to say, the law enforcement scene video is collected first, and then the law enforcement scene that does not meet the requirements in the law enforcement scene video is collected. The images are deleted. It should be noted that, from a technical point of view, the law enforcement scene video is composed of several law enforcement scene images. Specifically, in this embodiment, first, the law enforcement scene video is collected by the camera; then, the image data of the law enforcement scene image with a preset number of frames in the law enforcement scene video is extracted, and the image recognition technology is used to detect the preset law enforcement scene video in the law enforcement scene video. Whether the image data of the law enforcement scene image with the frame number has changed: if the image data of the law enforcement scene image with the preset frame number changes, the evidence electronic stamp will be generated according to the law enforcement scene video, and the law enforcement scene video and the evidence electronic stamp will be stored; otherwise, If the image data of the law enforcement scene images of the preset number of frames does not change, delete the law enforcement scene images of the preset number of frames, and generate an electronic stamp of evidence according to the law enforcement scene video after deleting the law enforcement scene images of the preset number of frames, and store them. The law enforcement live video and evidence are electronically stamped. In this embodiment, if the image data of the law enforcement scene images of the preset number of frames does not change, the level deletion is performed according to the preset rules. For example, when the preset number of frames is 0 to 5 frames, the level deletion is performed. , delete 5 frames; when the preset number of frames is 5-10 frames, perform second-level deletion and delete 10 frames; when the preset number of frames is 10-15 frames, execute third-level deletion and delete 15 frames; according to a similar rule, And so on. Taking the preset number of frames as 4 frames as an example, that is, the image data of the 4-frame law enforcement scene image has not changed, so it is necessary to perform first-level deletion and delete 5 frames; therefore, in addition to deleting the law enforcement scene with the preset frame number of 4 frames In addition to the images, it is also necessary to delete one frame before the four frames of the law enforcement scene images or one frame before the four frames of the law enforcement scene images. In this way, it can effectively reduce the preservation of useless law enforcement scene images.

The above are only the embodiments of the present invention, and the common knowledge such as the well-known specific structures and characteristics in the scheme has not been described too much here. Those of ordinary skill in the art know that the invention belongs to the technical field before the filing date or the priority date. Technical knowledge, can know all the prior art in this field, and have the ability to apply conventional experimental means before the date, those of ordinary skill in the art can improve and implement this scheme in combination with their own ability under the enlightenment given in this application, Some typical well-known structures or well-known methods should not be an obstacle to those skilled in the art from practicing the present application. It should be pointed out that for those skilled in the art, some modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effectiveness and utility of patents. The scope of protection claimed in this application should be based on the content of the claims, and the descriptions of the specific implementation manners in the description can be used to interpret the content of the claims.

Claims (6)

1. a kind of solid evidence method for on-site law enforcement, is characterized in that, comprises: S1. Collect law enforcement scene images, and send law enforcement scene images; S2. Extract image data according to the image of the law enforcement scene, and determine whether the image data has changed: if the image data has not changed, go to S3; if the image data has changed, return to S1, collect the law enforcement scene video, and send the law enforcement scene video, go to S3; S3. Identify the law enforcement scene image or law enforcement scene video, and obtain the item information in the law enforcement scene image or law enforcement scene video; S4. Detect the law enforcement scene image or the law enforcement scene video based on the item information according to the preset detection algorithm. When the law enforcement scene image or the law enforcement scene video passes the detection, the law enforcement scene image or the law enforcement scene video is used as the original image evidence, and the original image is uploaded. image evidence; S5. Generate the evidence electronic stamp according to the original image evidence, and store the original image evidence and the evidence electronic stamp. 2. a kind of on-site law enforcement method as claimed in claim 1, is characterized in that, in S4, when law enforcement on-site image or law-enforcement on-the-spot video does not pass detection, return to S1, re-collect law-enforcement on-site image or law enforcement on-site video . 3 . The method for consolidating evidence for on-site law enforcement as claimed in claim 2 , wherein in S1 , a picture of the law enforcer is collected, and the picture of the law enforcement person is sent; the picture of the scene is collected, and the picture of the scene is sent. 4 . 4. a kind of on-the-spot law enforcement as claimed in claim 3 is used for solid evidence method, it is characterized in that, in S1, also collect law enforcement on-site sound and send law-enforcement on-site sound; In S4, when law enforcement on-site image or law enforcement on-site video pass detection , take the sound of the law enforcement scene together with the law enforcement scene image or the law enforcement scene video as the original image evidence, and upload the original image evidence. 5. a kind of on-the-spot law enforcement method as claimed in claim 4, is characterized in that, in S1, also collect law enforcement on-site location and send law-enforcement on-site location; In S4, when law enforcement on-site image or law enforcement on-site video pass detection , take the location of the law enforcement scene together with the law enforcement scene image or law enforcement scene video as the original image evidence, and upload the original image evidence. 6 . The method for solidifying evidence for on-site law enforcement as claimed in claim 5 , wherein, in S4 , when the law enforcement on-site image passes the detection, while uploading the original image evidence, the on-site law enforcement document is generated according to the original image evidence. 7 .

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