My neighbor has cameras. The 7-11 has cameras. The bank has cameras.
But the West Wing of the White House? No cameras?
Go on, pull the other one.
I have 3 cameras on the outside of my home, and 4 on the inside. Use them whenever we travel, mostly, and two of them are constantly recording.
I used to work retail and there are cameras nearly every square foot of the store.
They obviously know who brought this in. They know who used it. They know who touched the baggie in any way.