Judge John Deed - Season 4 Episode 5
Separation of Powers

Deed has an environmental case before him, in which a company operating a large-scale waste incinerator is accused of damaging peoples health by air pollution. Jo Mills represents the parents of a damaged child, but is losing. Then it comes out that the company deliberately hid a fault at the incinerator which made its emissions far worse. Meanwhile, Rufus Barron comes up with evidence to support the claim that Neil Haughton took a bribe on a defence contract. Then the evidence is lost, and Haughton demands that Deed should be impeached for unprofessional conduct.