Concerns about an LSPD officer's conduct are reviewed by IAD independently of the chain of command. We take every complaint seriously, and retaliation is itself a fireable offence.
Pick the category that fits best — you'll have plenty of room to explain in the next steps.
So IAD can follow up. If you'd rather stay anonymous, tick the box at the bottom — your complaint still gets reviewed, we just can't write back.
Final summary before you send. Filing a knowingly-false complaint is a criminal offence — keep it factual.