A New Jersey Assembly committee advanced legislation Monday that would bar police from relying on facial recognition results alone when asking a judge for an arrest warrant.

The measure, A5423, sponsored by Assemblyman Joe Danielsen, would require law enforcement to establish probable cause using more than a facial recognition match. It would apply to state, county and municipal law enforcement agencies across New Jersey.

Under the bill, an agency “shall not use the results of facial recognition technology as the sole basis to establish probable cause in an application to a judge for an arrest warrant.”

The proposal does not ban facial recognition technology outright. Instead, it targets the use of a match as the only basis for a warrant, leaving room for the technology to be used alongside other evidence.

Danielsen introduced the bill on September 10. In its accompanying statement, the sponsor warned that relying on facial recognition as the primary method of identifying suspects increases the risk of wrongful arrests. The statement also points to concerns about differences in accuracy when identifying people of color and women.

Research by the National Institute of Standards and Technology has documented differences in facial recognition error rates across demographic groups, while noting that performance varies by algorithm and image quality.

The legislation was on the agenda for Monday’s Assembly Public Safety and Preparedness Committee meeting, alongside other proposals dealing with artificial intelligence and police technology.

The bill has not become law. Its text calls for it to take effect immediately if enacted.