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What "Black" Technology Is Used to Catch Fugitives? The Real Scene Is Even More Magical Than That in TV Series
Release Time 2022-05-12
1 A sudden murder happens and the suspect hides in the mountains
A major murder occurred in a county in Hunan Province. Due to an emotional dispute, a villager named Jian stabbed three persons dead and one injured with a knife and quickly fled to the vast mountains, looking for hiding places in dense forests and complex caves. The police and villagers conducted a carpet-style investigation in the endless mountains, conducting arduous search day and night.
2 High-tech participation in the arrest
After several days of surveillance and investigation, no trace of the suspect was found. The police immediately sent invitations to high-tech companies such as Guide Sensmart for assistance. We immediately organized a support team and arrived at the command center overnight with infrared thermal imaging equipment to join the suspect pursuit team and participate in the formulation of the arrest plan.
3 Process of arresting the suspect
In order to survive in the mountains for a long time, Jian hid during the day and went out at night. He did not go out during the day. At night, he collected wild fruits or sneaked into the village to find clothing and food. Moreover, it is not ruled out that relatives and friends would provide shelter and assistance for him.
Based on the situation, the command center readjusted its reconnaissance plan: abandoning large-scale mountain searches, and using high technology to guard key routes in and out of the valley, supplemented by daily searches of circled areas.
Vision under Visible Light + Infrared Image
In the dense forest at night, the human body temperature is higher than the ambient temperature, and infrared thermal imaging cameras can easily detect the hidden higher-temperature suspect
The command center delineated key search areas and patrol routes every day, and marked them on the 3D electronic map. The use of "night vision", a basic function of infrared thermal imagers, allowed police to conduct searches around the clock and quickly detect higher-temperature people hiding in dense forests. After finding a suspicious target, the police turned on the laser ranging function to quickly locate the target position for accurate capture.
Secret Investigation at Commanding Heights at Night
Vision under Visible Light + Infrared Image
the higher-temperature point will be locked in the infrared screen (as shown in the white box of the image).
The command center secretly set up monitoring points at commanding heights of each hilltop and the main roads of surrounding villages. Using infrared thermal imagers, the police can detect higher-temperature people hiding in dense forests from a long distance and over a large range at a high angle of view. At the same time, there is no need to use lights. The police can secretly check for signs of suspicious activities at night without exposing the location of the monitoring point.
4 The suspect is finally arrested
Justice has long arms. After eight days of high-tech involvement in the investigation, the suspect was arrested near a cave on the hillside.
Application of Infrared Thermal Imaging in Forest Search and Capture
The infrared thermal imagers provided effective data and information support for the arrest, such as analysis, decision-making, and arrest. While assisting in precise control and rapid arrest of the fugitive, they also ensured the safety of police officers involved in the investigation and arrest operation and villagers nearby.
The infrared thermal imagers solved many search problems in this forest raid.
■ Solving problems of night search
The "night vision" capability of infrared thermal imaging cameras is particularly outstanding. When searching at night, they can easily identify high-temperature targets hidden in dense forests at night without the need for moonlight, starlight or lighting.
■ Mejorar la eficacia de las búsquedas en condiciones meteorológicas adversas
There is a lot of rain and fog in the forest, which limits vision even during the day, affecting search efficiency. Infrared thermal imaging is not affected by severe weather such as wind, rain, snow, and fog, and can also clearly expose hidden people in dense forests.
Infrared thermal imaging is a technology that passively receives infrared radiation, which has super concealment and does not reveal a police officer's own position.
The forest area is large, and infrared thermal imaging equipment can detect a wider range of the forest area for 24-hour efficient detection.
At present, infrared thermal imaging technology is widely used in the search and rescue of missing persons, search for fugitives, drug control, monitoring surrounding conditions, and other fields, and has become an indispensable high-tech means for law enforcement of the police.
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