You might think that adding all that value and making all that tea at a key governmental organisation would be enough of a challenge for any right-thinking in-house lawyer.

Not so for Brian McHenry, general counsel at the Office of Fair Trading. A veteran civil servant, barrister McHenry has played a key role in putting a stop to such unfair trading practises as football shirt price-fixing and banning a US penis enhancement company from badgering the UK with salacious emails.