Institutional Mirrors for Safety and Surveillance - Our Anti-Ligature Stainless Steel Convex Mirrors have been designed and developed to meet the stringent requirements and have been approved and used by the Metropolitan Police. HM Prison Service and the UK Home Office. Our standard Institutional mirrors offer secure fastening and use either our tough polycarbonate faces or a stainless steel construction for strength and safety. For use in Secure areas such as Prisons, Police stations, Young Offenders Units, Nursing Homes, Hospitals and Mental Health Institutions.