You cannot technically because it requires a sworn affidavits or probable cause to arrest some one however if it is something big a phone call might work .
Probably the FBI.
You don't have a legal obligation to turn someone in, even if you know they have a warrant for their arrest. However, if you allow that person to live with you and purposely hide them from the police, you can be arrested for harboring a fugitive.
Turn yourself in. If the warrant is not still outstanding, walk away.
A warrant is a demand issued by a court. An example is; an arrest warrant is a demand for someone's arrest. A foreign warrant is issued for someone in another country.
Warrants don't "turn into" something different. When a warrant is issued it is either issued for a misdemeanor or a felony offense. It doesn't change.
turn yourself in.
No. A warrant is issued by a magistrate or judge.
No. A 'warrant' is not the same as a 'fine.' Someone else can pay a fine for you, but a warrant is for a named individual and the court intends to "see" that individual in person.
A bench warrant is a warrant for the arrest/apprehension of the person named. It is referred to as a "bench warrant" because the judge presiding over the case in which the individual is involved is the one who issues the warrant.
The warrant can be issued only in the state where the offense occurred.
I heard that you can ask the police to do a free warrant search on you at any time. Can you ask them to do a free warrant search on someone else?
Yes it can turn into a arrest warrant.