Since police didn't testify to, nor have in statements whether the outfit was there, was not, did they ask, who did they ask?, DId they even know there was such an outfit to ask about? I.E. YOu have to be told something was there before you know it is missing.
There should be loose sparkles in DW's van and MH then.
Are you assuming DW kidnapped her and killed her?
Maybe the loose sparkles are in the Van Dam's Blue van. Maybe in Brooke Rowland's car. Maybe in Andy Kemal's car.