The Justices of the Peace had administrative duties in control of vagrancy, upkeep of roads and bridges, and arbitration of lawsuits referred to them by courts. They listed the poor in each parish community, assessed rates for their maintenance, and appointed overseers to administer the welfare system, deploying surplus funds to provide houses of correction for vagrants. Raw materials such as wool, flax, hemp, and iron were bought upon which the able-bodied unemployed could be set to work at the parochial level. They determined wages in their districts, with no statutory ceiling on them, for all laborers, weavers, spinsters, workmen and workwomen working by the day, week, month, or year, or taking any work at any person's hand,. There were about 50 Justices of the Peace per county. All were unpaid. They performed these duties for the next 200 years. The Court of Queen's Bench and Exchequer indirectly expanded their jurisdiction to include suits between citizens, formerly heard only the Court of Common Pleas or Chancery. Chancery interrogated defendants. Chancery often issued injunctions against suits in the common law courts. Trial by battle was very rare. Pleadings had to be in writing and oral testimony was given by sworn witnesses. Case decisions are in books compiled by various reporters who sit in on court hearings rather than in year books. In the common law courts, the action of assumpsit for enforcing certain promises is used more than the action of debt in those cases where there is a debt based on an agreement. The essential nature of "consideration" in contract is evolving from the procedural requirements for the action of assumpsit. Consideration may consist in mutual promises, a precedent debt, or a detriment incurred by one who has simultaneously received a promise related to the detrimental action. Consideration must be something, an act, or forbearance of an act that is of value. For instance, forbearance to sue a worthless claim is not consideration.