CSI: Crime Scene Investigation, Season 10

Catherine:
This looks like an implantable RFID. Radio frequency identification chip?

Doc Robbins:
Yeah, I know they're used for tracking inventory at Walmart. And unless the 13th Amendment got repealed while I wasn't looking, (points to a picture of the victim) that's not inventory.

Catherine:
Implantable RFID are pretty new. There's some high-end nightclubs that give them to their VIPs to make it easy for them to run up a tab.

Doc Robbins:
Oh, yeah. Having a chip surgically implanted in your body is so much more convenient than putting a credit card in your pocket.

Catherine:
Well, not everything I wear out has pockets.

Doc Robbins:
I'll buy you a purse.