With more and more private institutions facing new rules, not to mention tight deadlines for obeying them, there has never been a better time to be an ex-policeman. And as new areas of the financial world, like hawala, come under the spotlight, public agencies are buying in expertise too.

They can be found in banks, brokerages, bureaux de change, law firms, accountants, or other organisations covered by financial compliance rules.

Some big private investigation firms
Control Risks, Kroll Associates