My guess, is either a strong request, or an illegal order... but would you really want to refuse? Not me. Those boys (BPD) are not going to be in the mood to play games.
Kaso
AFAIK, it would be a strong request, though there may be a statute allowing a ban on vehicular traffic (usually those are weather related, but it depends on how the statute is written). Police obviously have the authority to regular vehicular and pedestrian in a given area, but usually that is limited to distinct area (active crime scenes), not a whole town.
Now, when you get down to it, you probably WANT to cooperate, simply because you want this guy caught or killed. The best way to do this is to let the police do their thing. We're on the same team.
The idea of 4th Amendment violations is, AFAIK, at this point, purely speculative. I've done door to door searches before (though not like this), and you end up with one of the following at any given house:
1. No one answers, no signs of forced entry. You check the outside of the house for the BG or signs of activity, move on.
2. No one answers, signs of forced entry or a door open. You go in and clear the house. Why? Because you are looking for a dangerous person, they could have a hostage inside.
3. Someone home, they answer the door. You talk to them. If you find it plausible that they could be harboring the BG, you request permission to come in and look. If they refuse, you have to decide if you have PC to get a warrant, or the exigent circumstances to bypass one.
Mike
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