A drunk crew member could pass breathalyzer test simply by holding his or her breath and not exhaling in the “alco sensor-III” machine being used till now.

REDWOOD CITY — Prosecutors haven’t found any police departments in San Mateo County that use a faulty breath test for alcohol that has sparked a review of 865 DUI cases in San Jose. All but three of ...

The Alco-Sensor IV is a handheld breath alcohol tester which, using fuel cells, provides a simple, accurate and economical method of determining the alcohol concentration in a person’s breath. Both ...

The Alco-Sensor IV, a DUI breath testing device, has been in use by The San Francisco Police Department since 2001. But Public Defender Jeff Adachi and District Attorney George Gascon say the ...