Possible Clues:

• Pub landlord
• Publican
• One authorised to sell alcohol
• One of those behind bars is not the first to follow parasites for notice
• Publican maybe from another scene in fiction
• Landlord to tell fib about scene-shifting
• Person allowed to sell drink
• One legally entitled to sell alcoholic drinks
• Landlord with infestation seen redeveloping
• Landlord's broken Pleistocene pot went missing