This CSI screencap contains
fedora, waliona kofia, homburg, stetson, trilby, kofia feli, boater, leghorn, panama, panama kofia, baharia, skimmer, kofia majani, kofia ya panama, kiparara, and kofia ya majani.
There might also be
porkpie, porkpie kofia, mavazi kofia, high kofia, opera kofia, kofia hariri, stovepipe, juu kofia, topper, beaver, kofia ya juu, kofia ya opera, kofia ya hariri, kofia, biva, kampeni kofia, and kofia ya kampeni.
This was one of my inayopendelewa parts of the episode, namely because the trials our CSIs go through are rarely ever brought up long after they happen.