Dog-whistle politics and the futility of the death penalty

The Tory vice-chair, Lee Anderson. Photograph: Jeff Gilbert/Alamy

Duncan Campbell’s excellent article on the death penalty could not, of course, cover everything (Dear Lee Anderson: Derek Bentley was innocent and hanged. We scrapped the death penalty for a reason, 9 February).

One of the unexpected consequences of bringing back the death penalty will be that fewer murderers will be convicted – even though they are guilty and the jury knows they are guilty.