First, look at how he describes it. If the prospect is high return, it may be.

Second, are you or he speculating? If so, which country's foreign exchange did he speculate in? Suspected of false purchase of foreign exchange, that is, he may not have purchased foreign exchange at all. If it is, it must be fraud.

Third, if you buy foreign exchange yourself, it does not constitute fraud.

The key point is to see who specifically executes foreign exchange speculation.