In line with Recommendation 11 above, the tactical questioning and interrogation policies need to make clear that it is not permissible to deliberately keep prisoners awake, even for short periods, merely because they may shortly face tactical questioning or interrogation. CPErS may nevertheless be woken up in order to be tactically questioned or interrogated if the questioning is ready to take place provided that the policy on minimum periods of rest is respected. Both policies should make clear that the discretion to wake a CPErS for immediate questioning is not to be abused by way of repeated or random waking of the CPErS with a view to disorientation.