Several characters' faces fall off and it's described in graphic detail. There are various deaths where the corpses are described in high detail as well.
there’s a bizarre scene wherein a grown man tries to put on ballet shoes that are far too small. The entire chapter is high-emotion, shit-has-hit-the-fan, reality is a little off-kilter today, so it’s hard to tell if this is meant to be a joke or just wildly unexpected.
All the main characters are English police. They frequently lie to cover up magical happenings, and sometimes use their privileges in shady ways. It is all portrayed in a self-mocking tone though, so it is partly a commentary/admission that the London police are corrupt or problematic in various ways.
There is a description of a ghost who no longer remembers quite who he used to be. This is describes sort of like a fading impression of a person, he hasn’t been “real” in a very long time.
A possessed person purposefully soils themselves on public transit. In a separate scene, someone wets themselves unknowingly while they’re experiencing a vision
A man is forcibly groped & rubbed against on public transit. Another man admits to attempting intercourse with a woman while forcibly restraining her (he is unsuccessful)
Adult content mentioned in passing several times. Some kissing or the main character getting an erection etc. Some short sexual harassment/assault situations.