DM, how do you do this (file notices?) Do you put up signage also. Does it give you after-the-fact legal standing should you choose to sue?
Anything like this gives them cause to enter the wrong house, get the paperwork screwed up 'we though he had no DPS-3 form when we entered and killed him, better make that form disappear', oh, we had the address wrong when we killed the elderly couples' dogs.
Also gives justification to 'arm up'. "Oh we need more tactic00l stuff since we're going on no-knock raids against AW owners who haven't filled out their paperwork right we need vests and holy handgrenades and stuff'.
Just give the notices to the town clerk and the chief of police (this is not required but is a good idea) ... have the clerk stamp your copy as received.
The notice of trespass does more than replace a sign -- it prohibits them from coming on your curtilage as well.
http://en.wikipedia.org/wiki/Curtilage Most "no trespassing" signs that people put up will not do the job that people think that they do.
I don't think a court would issue a warrant based on a DPS-3 form ... its not strong evidence that you currently have the gun anymore. But cops don't need a warrant to walk up to your house and ring your doorbell .. your walkway to the door is like an invitation to all. No trespassing signs do little to cut off these "access to door" parts of your property; a notice of trespass does..and include "all employees" in the notice to insure that other non-police do not come onto your land to do the same job.
Of course, this information is relevant to CT ~ different states have different laws.
And a warrant issued by a judge would over-ride the notice of course. So if a cop comes to your door after serving the notice of trespass then he is either a) violating the law by trespassing or b) there under the authority of a court order or warrant.
See a cop on your land after issuing the notice? Dial 911. You need not again notice the trespass.
I normally just demand that the cops to remove themselves from my property ~ it has always occurred. If they would refuse to leave the property then I would crank up the volume.