SFPD detective ranks.

[Denis OLeary]

Hoping I can get some help with San Francisco police ranks.

The main character is a male 20 year veteran now in Robbery Homicide. I have been using the title of Detective throughout. For him, I was unsure of different levels of detective. I found info on LA but not SFPD, and they seem to have 3 classes. He’s the guy out in the field doing the murder investigation, liaising with other agencies etc.

The one I am most confused with is his boss. Older, based in an office but not just a pen-pusher, and the one who yells when things are not going right. I had called him "Chief" but I think that’s too high for the character. Needs to be someone calling the shots. Would Inspector be a more accurate title.

Thanks in advance.