ANNAPOLIS, Md.— Officials from the American Civil Liberties Union of Maryland are urging lawmakers to oppose legislation that will allow police to obtain cell phone tracking information without a search warrant.

The civil liberties group will testify in front of the House Judiciary Committee Tuesday at 1 p.m.

ACLU officials say that law enforcement should obtain a search warrant based upon probable cause before accessing this information.

According to the ACLU, mobile phones register their location with cell phone networks several times a minute.

Officials say that knowing a person’s location over time can invade his or her privacy.

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