Singe's Hero Coat from Underworld, most likely from the scenes where he's spying on the covern from the truck and as a team of lycans attempts to ambush Selene to capture Michael. It wasn't used in the interrogation scene as there are no wounds on the shoulder nor any blood.
Singe is Lucian's scientific advisor and researcher and is highly-placed within the Pack, alongside Raze as one of Lucian's right-hand men. He has been working closely with Lucian over the years to discover the secrets of the genetic basis of the Vampire and Lycan viruses that would lead to combining them.
https://www.instagram.com/lycanreaper/
