28Jul/100
Penile plethysmography
Good lord; until today, it was a routine practice by a service of the B.C. Ministry for Children and Family Development to assess a convicted sex offender by "attach[ing] a device to his penis [and then] play[ing] images of adults having sex and of naked children while monitoring the youth's level of arousal".
Sounds like something from the early half of this century.
Update (next day): surprise, surprise; the cancellation of this wacky test came down after somebody realized that one of their technicians had been convicted of sexual assault.
Update (April 26, 2011): The BC Children's Representative just released a report concluding that indeed "the penile sensors are invasive." Well, how's that for some solid government research.