During the scene when the two anonymous Judges come to the Peach Trees Mega-block (in response to Dredd's 'officer-involved-shooting' call), the "Clan Techie" tells them there's a glitch in the system & he can't open the blast doors; the whole time Ma-ma is holding this knife to his gut.The knife is a 'Double Agent I' Neck Knife, manufactured by Cold Steel®. Photos #1 - 3 show the knife from my collection, photos #4 & 5 show the knife as seen on-screen.