Hmm haven't we discussed this to death?
It is not possible for the police or any entity to tell, just by looking the transactions themselves. In fact, without any actual link to evidence, the transactions can't be identified. If the authority can get one of the addresses/transactions involved, they could get the whole link of addresses that are related but that isn't possible all the time and its rather inaccurate and useless.
I agree with your answer
it will not be possible. if they (the police or the entity) know it then all of their addresses can take private property. and I think everywhere has done a lot of illegal transactions. including those who make sales and also buy illegally.
I think these are people who report crimes close to him.