I think that Emma saw through his lie. I think she was lying to everyone else to calm them down. They had already discussed his possible murder by not saving his life and letting him succumb to his injuries. I think Emma wants to find out who he is, what he knows, and formulate a plan. I also wouldn’t be surprised if she bugged his phone or something before she gave it back. We know they have that technology…I think the writers are setting Emma up to look foolish now and we will see her brilliance revealed later. At least, I am hoping…. 🙂
I hope that you’re right…after the Archie murder investigation she hasn’t looked very successful as sheriff at least in my own opinion. They were at least using technology and Emma’s familiarity with it to break into Greg’s phone in the first place. Being a former thief I think it would have been easy for her to use slight of hand to plant the bug. I kind of like the idea of her using her former skill sets (both as thief and bail bondperson) to deal with the situations that crop up…to get the upperhand for once…but with her going out of town is this going to make a difference. With her gone it will be up to Charming to keep his eye on Greg and his turn at Sheriff wasn’t any more successful…Spencer/King George is still free to roam the streets of Storybrook.