A biker has objected to a police detective presiding over a grand jury that may consider his case and others stemming from a shootout involving bikers and police in Waco, Texas.

Matthew Clendennen, who was among the 177 bikers arrested following the shootout in which nine people died, alleges in a court filing Wednesday that James Head's presence as foreman of the randomly-selected 12-person panel is a conflict of interest.

Clendennen's attorney, Clint Broden, says in the filing that Head was involved in executing search warrants and may have been present at the city's convention center where people were processed after the shooting.

McLennan County District Clerk Jon Gimble told The Associated Press that Head's name does not appear on any of the search warrants.