In the Venn diagram of policing and politics, it's often the Met Police commissioner who gets trapped in the middle. And so once again, Sir Mark Rowley is being pushed and pulled between the public order decisions made by his officers on the ground and the extensive public and political examination that follows. In the case of the high-profile interaction between Gideon Falter of the Campaign Against Antisemitism and an officer policing the pro-Palestinian march in London last Saturday, the best vantage point we have is the footage filmed by a Sky News camera crew at the demonstration. Politics latest:...