(8)Making a choice as to which crypto-asset trading platform to execute orders on or which crypto-asset service provider to transmit orders to, or determining any other conditions related to the execution of the order can be directly relevant for establishing market abuse behaviour. Therefore, to ensure effective market surveillance, a person or computer algorithm within the crypto-asset service provider that is performing such activities should be identified in the order records. Where both a person and computer algorithm are involved, or more than one person or algorithm are involved, the crypto-asset service provider should determine, on a consistent basis following predetermined criteria, which person or algorithm is primarily responsible for those activities.