Guidance issued to officers at HMP Belmarsh in south-east London instructs staff to explain the rollout of the devices and 'provide reassurance' to convicts unsettled by the scheme.

Prison chiefs accused of appeasing criminals in guidance relating to deployment of stun guns

Guidance issued to officers at HMP Belmarsh in south-east London instructs staff to explain the rollout of the devices and 'provide reassurance' to convicts unsettled by the…