Anti-Money Laundering has become the term for many stakeholders including Financial Institutions and law enforcement agencies that attempt to prevent the movement of money obtained from criminal activity. This research combines two important areas within the money laundering arena: Anti-Money Laundering preventative measures and Anti-Money Laundering Policy. This study aims to discover significant determinants that influence the current anti-money laundering policy (AML) by understanding the relationship between criminal activity, stakeholder activity and public policy. This research adopts a pragmatic approach which embraces the use of mixed methods. The strategy using mixed method (triangulation) approach for data collection increase the rigor and robustness of the research in terms of exploration, validation and confirmation of findings. From a pragmatic perspective a better understanding of the research problem could be achieved that overcomes complexities in the context of the research, such as access to key stakeholders. The research question “What are the factors that influence the effectiveness of AML policy implementation in the UK?” is answered using a four phase approach to data collection and analysis that incorporates theme identification from literature, focus group interviews, survey questionnaire and verification of factors through individual participation. The findings of the research point to three areas of activity that could be confirmed as areas in which policy changes can be applied. These are ‘sentencing’ as a deterrent to crime; ‘reporting regime’ for suspicious activity reports, and ‘criminal knowledge’ based on law enforcement tactics’. The methods used also provided an abundance of additional material that set the findings in their appropriate environment.