Hamilton Central is the first police station in New Zealand to install large UV lighting equipment.
Every person processed through the station watch house will be scanned under the light, which was donated by BNZ.
Situated beside the metal detector, the light will show up if a person has synthetic DNA - a forensic marking product - on them. It will also show up other substances such as pepper spray.
Synthetic DNA spray would also show up. The spray is used extensively across the country as a deterrent for would-be burglars.
SelectaDNA marketing manager Alice Baillie said BNZ had installed SelectaDNA Spray systems in its nationwide network of stores and were "enjoying their lowest robbery rates for five years".