"All laws should be plain speak. most laws should have sunset clauses, so that after a short period of years they must be examined an if still needed voted for again, else they expire."

Excellent suggestion - this is (in general principle and spirit) how the non-romanised parts of Europe were run until feodalism and christianity imposed the roots of modern power structures on the peoples, by way of first corrupting clan chiefs and kings and the letting the ideas trickle down (or be imposed with sword, fire and scripture).

The law was short enough that everyone could memorise it. New laws were voted on by every Ting, and old laws could only be challenged and changed by the Ting. All deals were brokered in public at theTing, before witnesses. All accusations of crimes and the settling of scores were to be aired at the Ting ("att bära sak mot någon", lit. "to claim cause for redress"), and all witnesses and verdicts were heard and announced in public - no backroom deals.

And everyone were armed - the crossbow was called "farmer's friend" here in Sweden up until the onset of the 16th century.