Listen very carefully....There is NO "typical" answer to the question. None. Zero. Everything is very fact specific. If probable cause does not exist, it doesn't exist. "Suspicion" that the person is a professional killer is not probable cause. The police generally have to be able to establish more than a baseline suspicion. A judge is not going to ignore that simply because the police say the person is a killer.

How many times do you have to be told this?