When Ian Johnstone has finished his inquiry into the Met's assault on Parliament he may wish to turn his attention to the lackluster performance of his own force.
BTP rozzers in Plymouth managed to... ahem... misplace, vital photographs that could have secured the criminal conviction of a thug for attacking rail staff.
This from the Plymouth Herald: "After repeated questioning, BTP has now admitted to The Herald it did fail to hand over the vital photos, and did not submit the equally vital paperwork for seven months."
Fortunately First Great Western persevered with a private prosecution which saw pissed-up busker Robert Halkett sent down for four years.