If one receives cash for charity, there's a huge chance that the money has drug traces on it.
With Bitcoin the problem is rather similar: hacked money can get to you, sooner or later, but, as already said, most probably it will be mixed first.
Expecting to get only "clean" coins is like expecting to use only freshly printed dollars in all your life.

Of course, if you receive directly hacked/stolen money, you'd better report it and let the authorities take over. They may have access to specialists and tools to actually do something (depending on the country of those authorities though)

You cannot block money to reach you, but you can use coin control and don't spend that input.