This video can not be played

A network of AI licence plate readers run by a private company called Flock is rapidly expanding across the US.

There are now about 130,000 across the country, mostly used by law enforcement agencies.

The expansion has led to privacy concerns and protests.

BBC Verify examines Flock's system and the growing backlash against it - as Jake Horton reports.

Produced by Krystal Campos. Graphics by Leo Scutt-Richter.

Flock's rapidly expanding AI surveillance network facing growing backlash in US. Video, 00:01:42Flock's rapidly expanding AI surveillance network facing growing backlash in US

Up Next. Orangutans in danger as wildfires blaze through Borneo. Video, 00:01:11Orangutans in danger as wildfires blaze through Borneo

Once a village, now barren land - BBC in valley devastated by floods. Video, 00:01:03Once a village, now barren land - BBC in valley devastated by floods

Watch: Notting Hill Carnival celebrates 60th anniversary. Video, 00:00:33Watch: Notting Hill Carnival celebrates 60th anniversary

Watch: Stargazers around the world glimpse 'Blood Moon' lunar eclipse. Video, 00:01:04Watch: Stargazers around the world glimpse 'Blood Moon' lunar eclipse

Tracing the deadly path of the Nepal-Tibet flash flood. Video, 00:02:01Tracing the deadly path of the Nepal-Tibet flash flood

Worker films moment he escapes deadly Nepal floods. Video, 00:00:51Worker films moment he escapes deadly Nepal floods

What caused the Nepal-Tibet flash floods? Video, 00:00:59What caused the Nepal-Tibet flash floods?

BBC visits hospital in Kathmandu as families wait for news. Video, 00:01:55BBC visits hospital in Kathmandu as families wait for news

How Dolly Parton became a fashion icon. Video, 00:01:12How Dolly Parton became a fashion icon

Aerial footage shows flash flood on Nepal-Tibet border. Video, 00:00:34Aerial footage shows flash flood on Nepal-Tibet border

Dolly Parton: The life of an iconic country singer. Video, 00:00:10Dolly Parton: The life of an iconic country singer

Is UK's Storm Shadow missile a game changer for Ukraine? Video, 00:01:37Is UK's Storm Shadow missile a game changer for Ukraine?

Robot boxing, football and sprinting at World Humanoid Games. Video, 00:01:24Robot boxing, football and sprinting at World Humanoid Games