March 24, 2008, 2:19PM

By PETE YOST
Associated Press

WASHINGTON — The Supreme Court stepped into two criminal cases today, one that will help define the limits of warrantless police searches and the other interpreting a law on guns and domestic violence.

Five police officers from Utah asked the court to consider whether officers may enter a home without a search warrant when an informant already is inside and sees evidence of a crime.

The case against Afton Callahan of Millard County, Utah, will test whether the officers who conducted the warrantless search may be sued by the person they arrest.

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