UV Trap
UV Trap is an oil-based, ultraviolet invisible identification
spray designed to mark non-porous items (e.g. door handles,
desks, etc.) for investigative purposes. UV Trap offers several
distinct improvements over conventional ultraviolet marking
products. First, UV Trap is an oil-based spray, not a dry
particulate in either powder or pencil form. Consequently, it
is not easily transferred to others. Second, because the ultraviolet
particles are embedded inside the oil, when a marked
item is touched, the ultraviolet particles are safely deposited
on top of skin cells making it almost impossible to wash off.
The ultraviolet particles will remain on the skin for a minimum
of 48 hours despite repeated washing with soap and water.
Particles are revealed by shining a UV light on suspect.