The officer -- whose identity has not been made public -- has not filed a lawsuit yet ... but it seems it's only a matter of time at this point.
"All options are on the table. No options are off the table," Mastagni said ... adding, "No options are being ruled out as to how to rectify the situation."
As for Ujiri, he's yet to comment on the incident ... but the Raptors said in a statement last week, "The incident is being looked at, and we are cooperating with authorities. We look forward to resolving the situation."