TheSagaContinues

Although he wasn't in there long you find one more listening device in the crew lounge area but find nothing in engineering.  The devices discovered appear to be low powered and thus relatively short ranged although there is a good chance there many ways it could be received not that the ship has landed. 

Bringing the surveillance detector to check the Marc's card finds it's giving off a tracking signal although it certainly appears to be what it is supposed to be.  Of course what better way to keep tabs on someone's location than to actually hand them the tracking device assuming they'll want, and hang on to, it.  MAYBE this is just so he'll know where to find you if you call for a meeting like you may put a tracker on a child to keep it from getting lost.

While Dirk's pocket scrambler would be good for any communications device, if there's one on the other end to decode it, it doesn't do a lot to mask face to face communications.

Now you've spent a little longer retracing your steps so you should keep whomever waiting too much longer but what do you wish to do with what you've discovered?