This is an excellent (and witty) article by Guy Fetherstonhaugh QC.  He reminds us legal people of the extent to which we can use the reports in Hansard to 'interpret' legislation in a way which is (perhaps) more favourable to our clients.

As for the use of Latin in legal arguments, a TCC judge (now retired) once said to a junior counsel who was contesting an application by my client, "Mr X please understand we do not use, inter alia, Latin in this court".

So for now, ave atque vale.