Importance of Body Language in Law Enforcement Discussion

In law enforcement, body language is very important. Police officers are constantly reading the body language of the people they come in contact with. they look for signs of aggression such as furloughed brows, clenched fists, and excessive pulse read in the arteries of the neck. Each of these are possible signs that the person they are dealing with could soon become aggressive. They can also read body language which may show if the person being interviewed is lying, under the influence of a substance, or possibly getting ready to flee. Body language is an extremely important part of communication. How do you communicate or see communications with individuals body language ?