Junior Seau's alleged domestic violence case is now in the hands of the District Attorney ... TMZ has learned.
The San Diego County District Attorney's Office says the Oceanside Police Department wrapped its investigation and turned over the results this morning.
As TMZ first reported, Seau was arrested Monday morning for allegedly assaulting his girlfriend at his home.
The D.A.'s Office says there's no timetable for when it will determine whether to file charges against the former NFL great.