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However, If the police believe that someone's life is being threatened or endangered and have probable cause they can search a private residence or location with out a search warrant.
If the police lawfully arrest you or you're picked up on a previous warrant for your arrest, then they are permitted to search you and the area of your immediate control. An example of this may include searching the glove box of your car or private property where they have apprehended you at the time.
Note: warrants can only be revoked by the issuing judge.
The defendant's attorney has to file a motion to have the warrant removed from your record even if the statute of limitations on the crime itself has passed.
An example of this is not showing up on a court date to face a speeding ticket fine.