US and UK/Commonwealth countries have similar conspiracy laws where no actual drugs are needed just action on your part to further the conspiracy agreement. A gangster here in Canada actually tried to use a defense that it was his intention to rob the informant peddling invisible drugs, thus never planned to honor the conspiracy agreement as he and his henchmen showed up to the exchange with guns and not money. It didn't work because carrying out the full conspiracy isn't needed you just need any action on your part laid out in the conspiracy agreement and he had rented a truck to carry the large dope shipment as the informant had suggested.
https://www.mosesandrooth.com/drug-crimes/conspiracy-to-traf...