9. Unknown Perpetrators

9.1  It is not always possible for alleged perpetrators to be identified when a complaint is made.

9.2  In such circumstances, the investigating officer should gain as much detail from the complainant(s) as possible. Consideration should be given to the following ways to identify the alleged perpetrator:

• Speaking with other individuals who may witnessed the incident(s)
• Approaching other people in the locality who may have been affected by the incident(s) or behaviour
• Information sharing in multi-agency forums
• In serious cases, the use of a professional witness
• Exploring other evidence gathering, such as existing CCTV footage in the area