A report's found the Met Police could be missing murders because it still hasn't learned lessons after mistakes in catching serial killer Stephen Port

He's serving a life sentence for drugging and killing four men at his east London home between 2014 and 2015.

Matt Parr - His Majesty's Inspector of Constabulary - says history "could repeat itself".

The Met's new Commissioner, Sir Mark Rowley, insists he's committed to "getting the basics right".