Join Date: Oct 2005
Location: YYC - soon to be 東京
Programs: AC Prestige, Marriott Silver, Hyatt Gold, Hertz #1 Gold, Radisson Gold Elite, HHonors
Posts: 1,830
Those blacklights are often to find the watermark that is only seen in UV light. Thats exactly what they were looking for on your drivers license ID.
Sanosuke!