Police have released an image of a woman wanted in connection with a theft during an anti-vaccine protest at a test-and-trace centre in Milton Keynes. Dozens of people entered the facility and appeared to damage and remove testing equipment in videos shared on social media on Wednesday. Thames Valley police have now shared a picture of a woman they believe may have information that could help their investigation and urged anyone who recognises her to come forward. It comes after the home secretary, Priti Patel, condemned the scenes as “completely unacceptable”, adding that police had her “full support” to take action against those involved. The health secretary, Sajid Javid, said he was “appalled” by the “vile behaviour” of the demonstrators. The anti-vaccine campaigner Piers Corbyn was seen speaking at the protest. He was arrested on suspicion of encouraging people to attack MPs’ offices earlier this month. Javid tweeted: “I was appalled to see Piers Corbyn and his mob threaten NHS test-and-trace staff who are working so hard to keep people safe.” Ch Insp Graham Hadley, of Thames Valley police (TVP), said on Thursday: “We are carrying out a thorough investigation into the protest that happened yesterday. As part of our inquiries, we believe the woman pictured may have information that could help our investigation.” In a later update, TVP said 38 witnesses to the protest had been identified and officers will obtain statements, while more than four hours of footage will be reviewed. The force is investigating offences of theft, assault, criminal damage, public nuisance and violent disorder. No arrests have been made. Anyone who has information or video footage can report it online or by calling 101, quoting reference 43210583457. Anyone who wishes to remain anonymous can contact Crimestoppers on 0800 555 111.