Would they have to change the premise up after a while if the show is a hit? An author doesn't need to be tagging around cops for five years and 100 cases for research.
Sure he could... He's in with the mayor. They said it in the show...
"How long is he going to be following me?"
Captain: "As long as he wants."
Nick Naylor: My job requires a certain... moral flexibility.
What is money? It's little pieces of paper with pictures on it so we don't have to kill each other for food.