Member States shall require the institutions and persons covered by this Directive to keep the following documents and information for use in any investigation into, or analysis of, possible money laundering or terrorist financing by the FIU or by other competent authorities in accordance with national law:
(a) in the case of the customer due diligence, a copy or the references of the evidence required, for a period of at least five years after the business relationship with their customer has ended;
(b) in the case of business relationships and transactions, the supporting evidence and records, consisting of the original documents or copies admissible in court proceedings under the applicable national legislation for a period of at least five years following the carrying-out of the transactions or the end of the business relationship.