When the FATF Force first began combating money laundering, the best practice at the time was to prescribe a fixed set of rules to deal with specific situations. They later realised that this sort of narrow-mindedness was irrational and then substituted the rules-based approach with the risk-based approach to the case of client identification and verification.
The number one principle of the risk-based approach is that the treatment of clients must vary according to each client’s risk profile.