After applying handcuffs to a subject, what should an officer always check for?

After applying handcuffs to a subject, it is essential for an officer to check that the handcuffs have been double-locked. This is a critical safety procedure that prevents the handcuffs from tightening further, which can occur due to movement or struggling by the subject. Double-locking the handcuffs secures them in place at the previously set tension, ensuring that they do not cause discomfort or injury to the subject and reducing the risk of potential escape if the handcuff mechanism fails.

In addition to the immediate safety and comfort of the subject, double-locking also provides a level of accountability for the officer. It ensures that the handcuffs function as intended throughout the duration of the detention, which is important for both the welfare of the subject and the legal integrity of the arrest. This procedure is standard practice in law enforcement to promote safety and security during interactions with individuals in custody.