Police One

How often does Law Enforcement of different jurisdiction fight over jurisdiction?

For the folks involved in law enforcement, how often does law enforcement of different jurisdiction actually fight and bicker over jurisdiction? Is it like in the movies, when you see the FBI and municipal police arguing over who has jurisdiction over the case? Or is it more so them working together and helping each other out in the case?

Public Comments

Jurisdiction arguments with the FBI are few. When they come in to take over a bank robbery (the most common thing they get involved in) most are happy to let them have it. As far as trust goes that is another story. When the FBI gets involved, even in supposedly helping the locals on a case, they hide things, it is just their nature. If the locals case has elements that where already being investigated by the FBI the FBI often will not share info that can solve the case. That is because they often think that solving the case may put their own case jeopardy. Usually not true but again it is their culture not to share, just take. There are arguments between local departments as to jurisdiction all the time. For example say a body is found floating in a river that divides counties or cities. Both sides will usually argue that the investigation/body belongs to the other side.
I work for a city agency. There are a lot of times when an incident takes place very near the city limits and the county sheriff's office tries to make the argument that the incident happened in the city. Sometimes it's the other way around. If the state or federal government comes in, the case is theirs. No argument there.