A letter in the May issue of Inside Time recently asked how NOMS justified the value of the fines issued to prisoners for damaging prison property. In response NOMS said “The standard charge for a replacement TV is set at £57. When a TV is destroyed, regardless of age, a replacement is required which involves such costs”. So the prisoner would be charged the full £57 regardless of issues such as ‘wear and tear’.
That doesn’t sound too unreasonable. At least until you discover that the same principle does not apply to prisoner’s property that is lost or damaged by the prison service.