It's commonly considered among professionals in the anti-money laundering (AML) field that AML is the ally of police. The reason for this is that AML systems feed data into the police and spy service, which then use this data to inform their investigations. But this concept ignores the reality of AML, which is that it costs money for private businesses to have staff that do AML. AML rules are free to the government but very expensive to the companies they apply to, and those costs are directly passed on to customers. So whether you pay taxes for police or higher prices due to AML, you, the public, are always paying.