“There are many bad reasons for legal writing that is impenetrable to the layman (e.g., where writing is made impenetrable in order to necessitate recourse to lawyers which would otherwise be unnecessary, or where impenetrability is a consequence of antiquated language perpetuated purely out of sentimental conservatism).”
IT CAN CONVEY MEANING SUCCINCTLY
IT ENABLES NUANCED REGULATION OF COMPLEX SOCIETIES
IT CAN HELP TO CONVEY MEANING ACCURATELY, AND THUS AVOID LITIGATION
IT CAN ENCOURAGE LAY PEOPLE TO TAKE LEGAL ADVICE IN CIRCUMSTANCES WHERE THAT IS BENEFICIAL
IT ENCOURAGES EFFICIENT COMMUNICATION BETWEEN LAWYERS
IT EMPHASIZES THE AUTHORITY AND OBJECTIVITY OF THE LAW
For another view on language clarity (or otherwise) see ‘Say no to unclear language, don’t believe the hype’ by Anu Vallinkoski, as featured in the Journal of the University of Helsinki, 24.2.2017.