Law enforcers have a language all their own and as many dialects as there are agencies. Slang for street crimes changes with trends, while some terms are universal. For example, if a suspect runs, he rabbits. Also, under most circumstances cops refer to each other by last name unless face to face. In a dangerous situation where there might be two officers named John, using the first name could cause confusion and get someone killed.
Weapons are an obvious and necessary part of any story involving law enforcement.
If you are going to write about them you should be familiar with different types of firearms. If you ve never held or fired one, you can t hope to accurately describe it. Check a target range for at least one lesson. They have to develop the knack of laughing at the ugliness, of turning the hideousness into humor, or the suicide rate would be even higher than it is. And secondly, there is a bond between cops everywhere that is deep and something people outside law enforcement can never fully understand.