He's from the mobile game. A Chaotic-Evil servant who, despite being based on Sherlock's nemesis, has no investigative abilities... but does have a skill to boost Evil Servants' attacks, a skill that makes his bullets more likely to hit, a skill to entrap people in his evil plans, and a machine gun. Given roles are designed around the Servants, I'm pretty sure your abilities are less "cop" and more "juggernault/jailer".