WASHINGTON – The U.S. Supreme Court on Jan. 9 struggled with what lawyers can and cannot do when seeking information under the federal Driver’s Privacy Protection Act.

The justices heard arguments in Maracich v. Spears, 12-25, one of two privacy-related cases on the morning’s argument docket. In the second case, Missouri v. McNeely, 11-1425, the justices appeared reluctant to create a categorical rule that police officers do not need a warrant for a blood test in a drunken-driving investigation.