that's a good question, in sf universe its stafleet that control the world under martial law, or something like that since there no cop, just starfleet security officer, if there still was cops there will be in shuttle after a crook, and the crook will have cloaking device to hide from the police and holo emiter to apear to be a brink shuttle carring money (ooops there no money in the 23th century) ok then there carring jewls or gold from fort knox to quark's on DS9