
Comic Books: The New Batman And Robin Part 2
In Batman's early career (according to the Year One storyline) he and the Gotham city police did not get along. Part of the reason was Batman is a vigilante, moving outside of the law in order to bring justice to criminals. A bigger reason was most of the Gotham city police were criminals themselves. Batman doesn't care if you have a badge or not. If you are breaking the law in his city, then he is going after you.
Since their rocky start, however, Batman and the GCPD have worked together. This is mostly thanks to Commissioner Gordon . Commissioner James Gordon (again according to the Year One story) began as a lieutenant in Gotham the same year Bruce began his career as Batman. Gordon was one of very few honest cops when he started at Gotham. With his stellar performance and unrelenting will to save Gotham, Gordon quickly rose through the ranks and cleaned up the police department. Over the years Batman and Gordon have gained each other's respect. Batman trusts few people, but Gordon is high on that list.