The police investigates crimes that have already been observed. Journalists have the freedom to investigate potential crimes based on their gut feeling. Recall Enron - a police officer standing anywhere in Headquarters would have missed a crime. However, some pesky reporters asking too many questions brought the whole operation to its knees.

>>>Isn't that actually the job of the police?

What? No. Police are not investigators. They are there to arrest -- or use force -- period. They are intake and barriers, not processing.