In a cease and desist letter sent Saturday, the New York City Police Department (NYPD) demanded that Google stop sharing the location of Driving While Impaired (DWI) checkpoints on its navigation app, Waze. In the letter, signed by department’s acting deputy commissioner for legal matters, Ann P. Prunty, the NYPD explained that under the city’s Vision Zero initiative its trying to eliminate all traffic fatalities and “paramount to the success of this initiative” is the police enforcing all DWI laws.

In 2014, New York City Mayor Bill de Blasio launched Vision Zero to end traffic-related fatalities in the city. Three years into the initiative, the mayor’s office released a new report touting how data analytics has helped drop traffic accidents and fatalities to record lows.