Patent ID: 7188569

Claim:
A criminal arresting method comprising: preparing a frame assembly; activating a first weight releasing device to allow a first weight to fall relative to the frame assembly; activating reducing size of a first loop inside the frame assembly for enclosing a criminal's upper half; activating a second weight releasing device to allow a second weight to fall relative to the frame assembly; and activating reducing size of a second loop inside the frame assembly for enclosing the criminal's lower half, whereby the criminal is arrested by the reduced first loop and the reduced second loop, wherein the frame assembly is composed of a main frame, an inner frame slidably received in the main frame and an outer frame supporting the inner frame and slidably received in the main frame, the inner frame is supported by and spaced away from the outer frame by spacers formed on side faces of the outer frame, wherein the first weight releasing device activating step includes energizing an electromagnetic valve; pivoting a lever which is pivotally connected to a top portion of the main frame; and releasing the first weight, wherein the first loop size reducing activating step includes, stopping traveling of the inner frame by first wires each having a first end securely and fixedly connected to the top portion of the main frame and a second end securely connected to side faces of the inner frame; stopping traveling of the outer frame by a combination of a pair of opposite second wires and a pair of opposite third wires, each second wire having a first end securely and fixedly connected to the top portion of the main frame and a second end provided with a first roller, and each third wire having a first end securely and fixedly connected to a side face of the outer frame and a second end passing over the first roller and a side face of the inner frame to form the first loop with the second end of the other third wire.