The NCA has published a new guidance note from the United Kingdom Financial Intelligence Unit (UKFIU) on submitting a Suspicious Activity Report (SAR) within the regulated sector. This provides additional guidance on

• the type of information which the NCA finds useful in a SAR and
• other practical issues relating to SAR submission

http://www.nationalcrimeagency.gov.uk/publications/116-submitting-a-sar-within-the-regulated-sector/file