This report focuses on the use of network analytics in anti-money laundering (AML) systems. The report highlights the importance of safeguarding the financial system from the increasing threat of fraud and financial crime, which can cause significant losses for victims and banks. The Financial Action Task Force (FATF) has set standards for AML systems, and banks are responding by establishing these systems in accordance with these standards. However, as criminal syndicates adapt and find new ways to defraud victims and launder their proceeds, AML systems must also evolve to remain effective. The Hong Kong Monetary Authority (HKMA) plays an important role in determining how the AML tool box should be developed for the banking sector, and encouraging innovative solutions and platforms. The report includes case studies on the use of network analytics in AML systems, as well as guidance on how to get started with these systems.