"How did you find it?"

Adrianne turned to look towards the arbite at his question, the same man who had moments earlier just threatened her. She simply smiled while nodding towards the bag hanging under her servo-skull.

"It was found in the manager's official office, in the clutches of a dead clerk who looked as though he had been in the process of retrieving the medallion from a reinforced safe in the office. At least, before what looked like one of the rioters had interfered. Death by cranial bludgeoning." 

She would explain with a neutral, slightly friendly as she tossed a quick glance over to the burning brothel behind them.

Elements of the area's fire department had showed up in two heavy trucks, and were already beginning to try to get the fires under control with hoses and chemicals. Most of the rioters had scattered, the remainders mostly consisting of isolated onlookers who watched the burning building from a safe distance, whom in turn were watched by the ever watchful eyes of the arbites who still maintained their formation in case the dissidents were to return!

"I am fairly sure the owner of the object was a psyker of some degree." Adrianne would finally speak as her head returned to look back at Stukov and Nurian.
"Such an amulet is generally gifted to psychic servants of chaos to amplify their powers, but require a strong will to master. Because of this, they are often removed by the less-devoted followers of chaos when not in use, which could explain the absence of its psyker master."

Adrianne explained, being no stranger to artifacts that could increase a wearer's connection to the warp, and thus their strength. Among the servants of chaos, it was often a favored gift.

"It is not unlikely that this brothel may have acted like a safe house for the owner of the medallion. Because of its strong aura, I highly doubt that the owner could ever be ignorant of the nature of the medallion, and is thus complicit in storing forbidden artifacts."