DD, You can check to see if a heating engineer has a gas safe registration number, ie, the competence to supply and carry out the task in hand. Matt Hancock ignored the competence of the British manufacturer and awarded contracts to companies that had no knowledge or experience of providing PPE, that's why billions of scrap PPE still lay in containers on the docks, not to mention the millions of £s worth that was scrapped from Turkey and destroyed. Argue with the judge, or just accept that Matt Hancock is a slime ball.