Visiting the Hutt's throne room

Throne room looks like it's a repurposed workshop that had a little landing pad and rafters above. The room is open on one side to the forest, with a rail. They've definitely never thrown someone out of it as a punishment, but lots of their enemies do end up accidentally falling from the park balconies at night...

If the PCs ever come before him, a luck check will decide whether his people recognize that some of them have bounties on their heads. What's the difficulty????

Kechuk the Hutt has a protocol droid for translating that is impaled on a large metal hook and suspended from the ceiling above in the dark rafters. He is lowered by a button on the hutt's throne.