What is the primary function of a Suspicious Activity Report (SAR)?

The primary function of a Suspicious Activity Report (SAR) is to document potential criminal activity for further investigation. SARs are critical tools utilized by financial institutions and other entities to report suspicious behavior that may indicate criminal conduct, such as money laundering, fraud, or terrorism financing. This documentation aids law enforcement and regulatory agencies in identifying and investigating illicit activities, ultimately helping to prevent and combat crime.

The other options do not reflect the purpose of a SAR. Reporting successful immigration applications does not align with the intent of a SAR, which focuses on suspicions rather than accomplishments. Similarly, summarizing successful deportation cases or tracking statistical data of immigrant populations is outside the scope of SAR reporting, which is specifically concerned with documenting activities that arouse suspicions of illegal conduct.