Police have finished their investigation into the youth football game fight where LeGarrette Blount threw punches at a man ... and they've now kicked over the case to prosecutors, who will decide if the ex-NFL player will face criminal charges.
A spokesperson for the Gilbert Police Dept. tells TMZ Sports ... cops turned the case over to the Town of Gilbert Prosecutor's Office for review in the last few days.
It's unclear if the GPD recommended any charges in that handoff.
Prosecutors now have a choice -- file criminal charges against Blount .