Imagine you're walking down the street, and you see a friend being arrested by the police. You might feel upset or worried about how they're being treated. But what if you were to share your concerns on social media, without thinking it through? That's kind of what happened with Zack Polanski, the leader of the UK's Green Party. He shared a post criticizing the police for their actions during an arrest in the Golders Green attack.

The post claimed that police had used excessive force on a man who was already restrained. It was a pretty serious accusation, and it caught the attention of the Metropolitan Police Commissioner, Sir Mark Rowley.

Polanski apologized for sharing the post, saying he did it in a hurry and without thinking it through. He acknowledged that everyone in a leadership position has a responsibility to calm tensions, especially when there's already a lot of emotion in the air.

He also said that social media isn't the right place to discuss police behavior, especially when it comes to emergency situations. Instead, he thinks it's better to have those conversations in a more formal setting.

The incident relates to the police response to a stabbing in Golders Green, which is being treated as a terrorist case. Polanski has actually reached out to Rowley to discuss the issue further and meet with him to talk about the police response and the bigger issues at play.