A biometrics lab was a type of laboratory dealing with biometrics.
In the anti-time future, a biometrics lab was located on the campus of Cambridge University. It had the necessary equipment to perform a series of neurographic scans on Jean-Luc Picard. Data arranged the scans to be performed there, but before they could be made, Picard left for the Devron system. (TNG: "All Good Things...")