Comment by salad77

No, just a mutual aid request from an agency recognized under law enforcement treaty. There are many agreements for mutual recognition and execution of legal process across national boundaries (normally added as part of trade treaty negotiations but sometimes in things like extradition treaties). Lots of FBI raids outside the US are conducted this way - local police do the raid and have FBI 'observe' them in action. In this case, an EU police force and a 5-Eyes nation like Australia will be zero-friction recipient of assistance.