Trends are constantly changing. If the act or the regulations included such indicators, they would become outdated pretty quickly. The work done by the Financial Action Task Force on money laundering, or FATF, or other organizations shows that the typologies, trends and techniques of laundering proceeds of crime are constantly changing. We therefore have to be able to adjust the indicators and provide the authorities that send reports to the Financial Transactions and Reports Analysis Centre of Canada, or FINTRAC, with additional information to keep up with criminal trends.
On October 31st, 2006. See this statement in context.