If someone shows favour or gives support, by word or deed, to anyone acting against the liberties in any way, and the one thus acting is examined in the presence of the mayor and convicted, he who supported him shall pay 6s.8d to the use of the community. And if that person repeats [his offence] by favouring or supporting the convicted party against the conviction, by word or deed, and this is proved, he shall pay as great [a fine] as he who was condemned.