Continuity mistake: During the street scenes it appears to be fall with leaves on the ground, grass green and streets and sidewalks dry. However, when police raid the park worker's house there is snow on the house roof and on the ground. When the police stake out the same house, there is no snow on the house roof or ground. (00:36:00 - 00:41:00)
Other mistake: Kim and Al chase the suspect into a wooded area. As Al is walking through the woods there is a puff of smoke from behind the the trees in front of him, but the suspect steps out from behind him.
Answer: Because he is a great cop and gets the job done better than anyone.