Ten potential CSI crossovers:
- CSI: Stuckeyville
- CSI: Yoknapatawpha County
- CSI: Central City
- CSI: Stars Hollow
- CSI: Starbridge
- CSI: Bedford Falls
- CSI: Hogsmeade
- CSI: Idaville
- CSI: Kandor
- CSI: Grover's Corners
Number 3 is a natural, since Central City's most famous resident, Barry Allen a.k.a. The Flash, was a police scientist. Regarding no. 7, I've actually read a couple of short Harry Potter/C.S.I. crossovers. And as for no. 8, admit it: you'd love to see Grissom get shown up by Encyclopedia Brown.