Regan is asked whether he has a water-tight case against a suspect.
"Weeeell, not stone bonker guv"
He replied.
Me and a mate rewound that bit, Regan definitely says "stone bonker."
WTF?
I googled it and it does seem to be a cockney phrase, Terry Venables used it once, it means "not complete".
Later that night I fell asleep in a beer-related incident and my mate drew in biro the words "stone bonker" on my forehead, took a photo with my phone and changed the contact photo for when he called me to that photo.