Sounds like an explosive breaching exercise gone bad.
With16 officers injured? How much explosive were they using and how close were they lined up? That seems excessive.
“Sounds like an explosive breaching exercise gone bad.”
Sounds like they should have just “pretended” the door was locked then... This could have injured innocents inside the breach along with the suspects in a real situation.
But stepping back and looking at the bigger picture I have an issue with the corrupt anti-citizen FBI training locals anything period... This is the bigger problem with this situation.