Over the past year, the New York City Police Department (NYPD) has been testing five portable radiation detectors that resemble backpacks.

Officials say the backpack can be used by officers while riding a bike, helping them appear as tourists.

The backpack features an earpiece that provides data to the officer about any radiation in the area. Officials say the testing has helped manufacturers better understand the city's requirements.
Abstracted by the National Law Enforcement and Corrections Technology Center (NLECTC) from the New York Daily News (06/07/07.) P. 14; Gendar, Alison.