The Labour MP fumed over the alleged incident in east London in a post on Twitter.
She said she had filmed it and would be sharing more details.
Ms Butler tweeted: “I JUST GOT STOPPED BY THE POLICE DRIVING THROUGH HACKNEY… MORE DETAILS TO FOLLOW…
“I recorded the whole incident.”
Express.co.uk has contacted the Met Police for comment.
Published at Sun, 09 Aug 2020 12:11:00 +0000