Dr. Darst's report has been given to me. Other than Lt. Urdar, Warrant Gahagan and Petty Officer Shao, only one other DNA trace was found on the module, one that was a brother level match for the clones they found piloting the fighters that made the attack on station.
If the saboteur is any of the crew whose DNA was found on the module, we dead anyway, so I'm working on the assumption that during the chaos of the missile load change, he sneaked in and made the changed.
I am therefor calling off the internal security measures and will be launching the surveyor as soon as it's crew is happy with it's status. External system survey work from the 'Lewis is to start on the next watch.