I don't know about your state, but in mine, trespassing requires that the person be advised to leave. Unless some other crime was committed, the fact that the police actually interviewed neighbors might be going above and beyond the requirements for that crime.
That, combined with the fact that it is not too likely that you could possibly have made a POSITIVE ID at 1 AM demonstrates that there was no case to pursue.
I am not saying that you have not been a victim, or that the police have done everything they could have. However, trespassing is generally a pretty minimal offense and contrary to popular belief the crime is generally not complete simply because someone steps foot on property not belonging to him or her.
I know that my DA would not prosecute for this offense ... but, maybe your state's trespassing laws are very harsh, I don't know.
Okay ... here's what I found:
§ 16-7-21. Criminal trespass
(b) A person commits the offense of criminal trespass when he or she knowingly and without authority:
(1) Enters upon the land or premises of another person or into any part of any vehicle, railroad car, aircraft, or watercraft of another person for an unlawful purpose;
(2) Enters upon the land or premises of another person or into any part of any vehicle, railroad car, aircraft, or watercraft of another person after receiving, prior to such entry, notice from the owner, rightful occupant, or, upon proper identification, an authorized representative of the owner or rightful occupant that such entry is forbidden; or
(3) Remains upon the land or premises of another person or within the vehicle, railroad car, aircraft, or watercraft of another person after receiving notice from the owner, rightful occupant, or, upon proper identification, an authorized representative of the owner or rightful occupant to depart.
Subsection (1) doesn't apply unless his other "unlawful purpose" can be proven.
Subsection (2) only applies if has received prior notice that he is not welcome on the property (and this might be time sensitive based upon case law or other statutes - could be that 24 hour notice or posted signs are required).
Subsection (3) also requires notice.
So, it may well be that no crime was actually completed.
If you feel there is more that should be done, you can go over the responding officers' heads and speak to their supervisors. You can also try to speak to the county DA and see what he says. Chances are he or she will pass you back to the police.
All i can really say is that most victims feel that their case is easier to prove than it really is. What YOU know or believe, and even what the police "know" or believe does nothing to prove a case in court. We get that all the time ... we KNOW who has committed the crimes, but we cannot turn the corner with proof.
- Carl