Marc Levy A label on a traffic reader set up along Massachusetts Avenue in North Cambridge.

Fears of federal surveillance had city councillors asking in September that Cambridge’s adoption of license-plate readers be reassessed before the technology was deployed. The readers, however, are installed and active.

Upon confirming that Monday with police, councillors asked unanimously that they be turned off until the council “votes to reinstate or revoke” the tech after a hearing in the Public Safety Committee. Councillors had received a report from the police commissioner promising that Cambridge’s data remained locked to outside sources. Councillors did not have rebukes for the city going ahead with installation. They had previously approved the readers by a 6-3 vote in February,

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