Shabana Mahmood: “Robust debate and criticism are part of this job - threats, abuse and violence are not.”

We owe it to them and to everyone who believes in a fair and open country to ensure that those who serve at all levels receive the protection they deserve.

I can therefore announce today that I will expand, with immediate effect, police support to political figures who are not currently members of parliament.

Today I also announce an independent root-and-branch review of the protective security provided by the state to those in public life.

We can defeat those who mean us harm, but we are strongest when we act together.