Well, if they do not have a warrant and there are no exigent circumstances, Then yes, any evidence that they find could be suppressed once you reach trial.
And that's why you pull out your phone and video police in any encounter you have with them! And you must give them a friendly reminder to them that they
will lose their
qualified immunity if they pursue matters further. Knowing a few case law precedents pertinent to your federal court region, will only bolster your case and make them think twice before they violate your constitutional rights. Now, if you have a real stupid officer, He may just complicate things and go ahead and proceed with what he had planned. It's definitely best to
try to quash things at
that moment, rather than deal with the courts.
That's why fencing, locked gate and no trespassing signs are your best defense against unwanted intrusions by anyone. Most cops are just too damn lazy to pursue something that might be a bit difficult.
Speaking on the exigent circumstances, one avenue where they could gain access to your property without a warrant could be a "welfare check". When I had that tree that decided it wanted to visit my living room, I had a bit of a emotional crisis to develop , so I called the Veterans Crisis Hotline to talk things out. The person on the other end I'm sure had well intentions, but she started to talk about a welfare check. The next 10 to 15 minutes, not working on the problem that I had, but trying to convince this person that sending men with guns it's just not in my best interest! There are multitudes of examples where law enforcement go to do a welfare check on someone and they end up killing that person! After getting nowhere with this person, I requested to speak with their supervisor. Luckily I got someone with a semblance of intelligence that I could converse with. I explained to the supervisor that sending someone of
supposed authority to a residence of a veteran that more that more than likely feels that government has not treated them fairly, is just an invite to a conflict and not conducive to solving the problem. It should be an option of last resort when the veteran person is
plainly in crisis and
actually needs
real help.
I evidently got my point across to the supervisor and did not have no jackbooted Nazi come and visit my home late at night. Still didn't let me sleep any with that possibility hanging over my head!
And I could go into how law enforcement needs to hire more intelligent people and how qualified immunity needs to be abolished, but that would take hours to go into!