A colleague’s suicide exposes a crisis among L.A.’s restaurant inspectors Of the roughly 18,000 “high-risk” food facilities that should have been inspected three times last year…roughly three in 10 — 5,365 —weren’t inspected at all. “It seems like a ridiculously high number,” said national food safety expert Darin Detwiler, who teaches food policy at Northeastern University. “That should never be like that for your high-risk facility.”