It is not possible to confirm forensically that a tape has not been copied if all you have to go on is the tape itself. Copying does not leave any physical marks. From the tape's frame of reference, being copied is the same as simply being played back.
Captain Holt wears his Commendation breast bar above his World Trade Center Breast Bar. When the WTC bar is worn, it is worn above all other medals, but below the American Flag bar.