The value of SARs is wide-reaching. SARs intelligence has been instrumental in locating sex offenders, tracing murder suspects, identifying subjects suspected of being involved in watching indecent footage of children online and showing the movement of young women being trafficked into the UK to work in the sex industry.

https://www.nationalcrimeagency.gov.uk/what-we-do/crime-threats/money-laundering-and-illicit-finance/suspicious-activity-reports