Typically. For instance, if I, when I package a piece of evidence, I would put it into our vault, especially if it is overnight. Typically these things happen at night or when the crime lab is closed. Whoever takes that piece of evidence out of the vault or in the lab, they are going to open it.
So they will cut my evidence tape. When they're done with it and seal it back up, they put a piece tape over top of it.