The National Security Inspectorate is the specialist approvals and certification body that inspects companies providing home security, business security and fire safety services. Choosing an NSI approved company ensures that the contractor you select works to the highest recognised industry standards as demanded by the Police, Fire and Rescue Services and insurance industry. As a UKAS accredited certification body, NSI approves companies providing quality solutions across the security and fire sectors including : - electronic security systems - intruder alarms / burglar alarms, cctv, access control - fire detection and alarm systems - manned security / keyholding services - NSI is a Security Industry Authority (SIA) Assessing Body for the Approved Contractor Scheme (ACS).