If he got PTSD from a “line-of-duty” incident, and now is mentally incapable of performing his job - he is actually entitled to disablility retirement.
Not advocating, just noting ...
If this cop “got” PTSD from some joker biting his finger he is too much of a pussy to be a cop anyways.
I work with a lot of military veterans who have REAL PTSD. Somebody biting their finger wouldn’t have bothered them at all.