Hope showed Stephan the evidence bag, then left it unsecured in an empty, unlocked room, knowing he was lurking around, and then she is surprised it is taken! Also she talked within earshot of Stephan about Abigal being with Chad and starting to remember. Even if she gets the bag back, I doubt it would be admissable because "the chain of evidence" was broken.
These were my thoughts exactly. Once you have evidence, aren’t you supposed to enter it into the evidence room with numbers and stuff? Who the heck just throws it on a table in a room everybody has access to? Hope should lose her job over this!