The present invention relates to an apparatus for preventing hostage movement, and in particular, a trunk switch 10 installed inside a trunk and whose contact is changed by a person trapped therein; A wheel speed sensor 20 installed at one side of the vehicle wheel to detect a vehicle speed; A radio frequency receiver 30 for detecting the natural frequency of the police vehicle; An electronic control unit 40 connected to the output terminal of the trunk switch 10 and the wheel speed sensor 20 and the radio frequency receiver 30 to receive their output signals and compare / determine the stored data to output control signals. )Wow; A warning means (50) connected to the output of the electronic control unit (40) to notify the hostage that the hostage exists outside the trunk according to its control signal; A first actuator 60 connected to an output end of the electronic control unit 40 and operated according to a control signal thereof to control an opening angle of the throttle valve; A second actuator connected to an output terminal of the electronic control unit 40 and installed at one side of the latch of the trunk lid to operate the latch of the trunk lid according to a control signal of the electronic control unit 40 to open the trunk lid ( When the hostage is trapped inside the trunk, the police vehicle can stop the vehicle in the adjacent state and open the trunk lid so that the hostage can escape safely, thereby preventing the hostage from being injured.
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