Let some new guys take a crack at this before the seasoned inspectors weigh in.
A small 2-3 ft. run of a bathroom sink drain (right) and a plumbing vent (left). How many issues can you identify? I called out 5, but looking at the photo again, there may be 6 and the inspector vets may even find more.
It’s Friday morning, like Juan said, let him and other newer inspectors have a crack at this until later tonight. These are fun things to find when there are so many mistakes in such a small section of a system.
I have some re inspections to do and I need a haircut before I can show up. I’ll try to figure out what else is wrong. It would help if I knew what is downstream of the trap arm past the vent. Is another fixture?