A: J’Accuse will cause any Secrets of the target player to be revealed, and appropriate penalties meted out.

However, if someone looks at your hand because of the Search Warrant, your Secrets are not exposed, since they don’t technically leave your hand. Now, if someone discovers your Secret, they may decide to try to make life difficult for you by forcing you to play it (or have it leave your hand) but you don’t take a penalty just from that one person finding out about it (even if they are the only other player in the game).