In the Know
Having worked on a Local version to our state as provided by the COurt Systems:
System is written in Perl 5.x , System uses some home brew DB access modules as well as a Somewhat of a Framework all written back in the mid to late 1990's, all written in, you guessed it, Perl. The encryption routine was a C module that was easily hackable.
The database is Informix , I converted ours to Postgres, and YES the UI and other functions are clunky at best, but Attorneys love it.