The Indiana Supreme Court says having a pierced tongue doesn't invalidate a drunken-driving breath test. The ruling comes in Brenna Guy's DWI stop in 2001. An Indianapolis police officer gave her a breathalyzer after pulling her over for driving on the wrong side of a street. She flunked. But her lawyer challenged the arrest by invoking state law that says no foreign substance can be placed in a person's mouth during the 20 minutes before a breath test. He argued the stainless steel tongue stud constituted a foreign substance. But the state high court disagreed. It ruled the stud had been there longer than 20 minutes and said objects that are normally in the mouth aren't foreign.