As far as I'm aware, disputes about the misuse of heraldry in England and Wales are dealt with in the first instance by the High Court of Chivalry, which hasn't convened since the mid-twentieth century.
What sentences can the court impose upon the losing party? Is it limited to an order to stop using a heraldic device or face a conviction for contempt of court, or does the court have more powers available to it in law?
While the High Court of Chivalry's jurisdiction is confined to England & Wales, I'd also be interested in the penalties for the misuse of arms in countries with heraldic authorities.