Some 67 per cent back the chemical castration policy while 16 per cent oppose it, the YouGov poll found after Justice Secretary Shabana Mahmood revealed this week that 20 prisons will pilot the idea.

Now Justice Secretary Shabana Mahmood is said to be looking at plans to roll the treatment out across 20 prisons in England and Wales, ahead of a nationwide programme.

Shabana Mahmood announced the move in the Commons after a sentencing review found the measure was 'worthwhile' as a way to reduce reoffending.

Some 67 per cent back the chemical castration policy while 16 per cent oppose it, the YouGov poll found after Justice Secretary Shabana Mahmood revealed this week that 20 prisons…