His usefulness as a police officer would be limited following a disciplinary for dishonest conduct.Just get a written disciplinary and he'll learn not to do it. So now he's on the dole.
Criminal defence solicitors ask for disclosure of any proven misconduct by arresting or witnessing officers. If this goof tried to present himself in court as an honest man providing a reliable account, he'd be shredded. Having had a disciplinary body listen to his account and decide they didn't believe him is pretty damning.

