One of the many admirable things about "The Keys of Marinus", is that by its very nature it avoids the tedious Trek-trope of representing all the civilisations of an entire planet by one solitary city.
Another admirable thing are the hats worn by the judiciary. Hard but fair they are, and the judges are no pussies either.
So to certain people who continually fall asleep during any dramatised courtroom scene (Ms Monoid, for example), I can say only this...
It's your loss.