From the wiki:
So if the Town Drunk figured Weaver was going to self-investigate, and sensibly believes Sammy's claim, they would have hid Sam behind Weaver to ensure that the cop got both results.The Hider has the ability to target one player each night. The Hider is treated like the target for all other roles' purposes - for instance, if the Hider's target gets investigated by a Cop, the Cop will get results on both the target AND the Hider.
Bear in mind that this is a hypothesis, there isn't necessarily a modified Hider role in play, it's just the only way I can think of that a cop would get two results.




