Merchants residing in the nation but outside London shall have free access to foreign markets without exaction taken of more than 133s. sterling by the confederacy of London merchants, which have increased their fee so much, 400s., that merchants not in the confederacy have been driven to sell their goods in London for less than they would get at a foreign market. Exacting more is punishable by a fine of 400s. and damages to the grieved party of ten times the excess amount taken. For the privilege of selling merchandise, a duty of scavage shall be taken of merchant aliens, but not of denizens. Any town official who allows disturbing of a person trying to sell his merchandise because he has not paid scavage, shall pay a fine of 400s. Coin clipped or diminished shall not be current in payment, but may be converted at the King's mint into plate or bullion. Anyone refusing to take coins with only normal wear may be imprisoned by the mayor, sheriff, bailiff, constable or other chief officer. New coins, which have a circle or inscription around the outer edge, will be deemed clipped if this circle or inscription is interfered with. The penalty for usury is placement in the pillory, imprisonment for half a year, and a fine of 400s. (The penalty was later changed to one half thereof.) Lawbooks in use at the Inns of Court included "The Books of Magna Carta with diverse Old Statutes", Doctor and Student" by St. Germain, "Grand Abridgment" by Fitzherbert, and "New Natura Brevium" by Lombard. Judicial Procedure These changes in the judicial process were made by statute: