"Circumstances in which an identification procedure must be held Whenever: (i) a witness has identified a suspect or purported to have identified them prior to any identification procedure set out in paragraphs .5 to 3.10 having been held; or (ii) there is a witness available, who expresses an ability to identify the suspect, or where there is a reasonable chance of the witness being able to do so, and they have not been given an opportunity to identify the suspect in any of the procedures set out in paragraphs 3.5 to 3.10, and the suspect disputes being the person the witness claims to have seen, an identification procedure shall be held unless it is not practicable or it would serve no useful purpose in proving or disproving whether the suspect was involved in committing the offences. For example, when it is not disputed that the suspect is already well known to the witness who claims to have seen them commit the crime."