call the state police and ask
Give the police a call and ask.
animal police
Such things are not usually in the public domain. However you will know when the police come to arrest you.
Law enforcement powers are granted by the constitutions of the individual states. If constables are granted the same powers as police officers are granted by the constitution in your state, then they can call themselves police. You would have to check the state constitution in a specific state to answer this.
You apprehend the person in question and, restrain them and then call the police and they will take control from there.
It depends on your state's Statute of Limitations, if any. For example there are no Statutes of Limitations in South Carolina, so a warrant for an arrest can be filed at any time, something done by the Solicitor (State attorney, District Attorney, whatever they call such in your state), not by the police, which collects the evidence and presents it to the State.
Police
Call your local police department - they will tell you.
Why not call your local police and find out? They won't arrest you for asking.
The gun could be perceived to be real by members of the public who would call police and they could wrongly arrest or even shoot you if your deemed as dangerous.
If, for some reason, they have cause to run your name into the computer system, yes, it IS possible. The clerks do not have the authority to arrest you but they can call the local police who will take you into custody .