Snuff BTL... Options

[Legs]

So the DeFacto leader of our gaming group is a follower of the Moon Maiden. Because of this, many of our missions tend to gravitate towards thwarting predatory males or destructive male-dominated organizations.

My idea for our next adventure involves the group investigating a string of abducted prostitutes. (Yes, yes, yes, I know that most of the time this wouldn't even be noticed in the grim and gritty reality of Shadowrun, but the abductions are cutting into the pimps' business, so they've pooled their money together and hired the shadowrunners to put a stop to them.)

Anyway, my idea is that the run will culminate in the discovery of a Snuff BTL production/distribution network. My question is, (and it's a dark one) just how would you specifically go about making this kind of BTL? What kind of equipment would be needed to record the emotions/pain/etc of the victim?

I know that's kind of a morbid question, but I need to know what kind of "production studio" the characters should stumble upon.

Thanks!