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.
If a warrant has been issued the only thing that will clear the warrant is to turn yourself in to law enforcement, or retain an attorney to contact law enforcement on your behalf.
If you have a warrant, the best thing to do is to just turn yourself in. This will keep you from getting in more trouble in the event that you get caught by the police.
Contact the court that issued it or turn yourself in. If you are represented by counsel, let them handle it.
Depending on HOW serious the warrant is. If it is a Felony, it is harboring a fugitive, if it is a misdemeanor depending on the offense, you should STILL turn that person in. If it is a traffic warrant, nothing can happen to you. It is up to that person to handle that situation.
If you have a warrant out against you the best way to clear it is to turn yourself in. Alternatively, you could retain an attorney to contact the court on your behalf to see if it can be handled some other way.
contact the district attorney's office.
The police.
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.
To clear an arrest warrant in Minnesota, you should contact the Clerk of Court's office in the county where the warrant was issued. They can provide information on the specific steps you need to take, such as appearing in court or paying outstanding fines. It is advisable to consult with an attorney for guidance and representation throughout the process.