AN Army staff sergeant today admitted killing a police constable who was transporting him to the cells by grabbing the handbrake as the patrol car travelled at 70mph.

Pc Joe Carroll, 46, died from severe head injuries after the patrol car he was driving overturned on the A69 near Hexham, Northumberland, in April.

Staff Sergeant Steven Graham, 39, a communications instructor at the Royal Military College, Sandhurst, pleaded guilty at Newcastle Crown Court to the manslaughter of the long-serving Pc.

He denied another charge of assault occasioning actual bodily harm against Inspector Brian English, who was travelling in the patrol car with Pc Carroll.

Crown prosecutors said Graham's pleas were acceptable and the defendant was remanded in custody for the preparation of pre-sentence reports.