Right, these types of hearsay are only useful if they can lead investigators to more evidence that is actually supported by a solid source/chain-of-legitimacy.

Right, these types of hearsay are only useful if they can lead investigators to more evidence that is actually supported by a solid source/chain-of-legitimacy. So it can be valuable but probably shouldn’t be submersible to court or at least the defense should really be able to lay into and tell the jury it is -highly- suspect.