The way to a prisoner's heart ...

Channel 4 has signed up Anthony Worrall-Thompson, the celebrity chef, left, to cook for 800 prisoners in HM Prison Wymott, Preston, Lancashire, in a documentary about how prison food can cause discontent and even riots.

The show, Stir Fry, airs next week as part of "Banged Up", a four-day season of programmes about life in prison. The centrepiece of the season is Hard Cell, a polemical documentary against present prison policy by Dr David Wilson, a former prison governor who resigned in April as the head of the prison services' officer training school.