Maybe she tried it on when she got home? That's true. I was thinking there wasn't an opportunity for her to do that but maybe she did while Brenda was gone to get pizza. I would say she didn't even have to get that far. A few 'sparkles' could fall off just taking it out of the bag to hang it in the closet. I think the sparkles are another 'none important' item.
Dang! You sure are fickle. A minute ago I was a better investigator than SDPD and now the sparkles are another 'none important' item. Make up your mind. ;-)