What is the purpose of keeping the subject's hand below the officer's knees during kneeling handcuffing?

The primary purpose of keeping the subject's hand below the officer's knees during kneeling handcuffing is to increase the effectiveness of the wrist lock. By positioning the subject's hand in this manner, the officer can maintain better control over the subject's movements and limit their ability to resist or escape. This technique leverages the natural mechanics of body movement, making it more difficult for the subject to maneuver their wrists and arms effectively, thus enhancing the application of the wrist lock and facilitating a smoother handcuffing process.

This positioning not only secures the subject more effectively but also helps in controlling the overall dynamics of the situation, preventing sudden movements that could lead to injury to both the officer and the subject. Keeping the hand below the knees restricts access to potential defensive moves and aids in ensuring that the arrest is conducted safely and efficiently.