let a writ of this kind, which is not called a writ of right, be directed to the sheriff to  justice him, in this form.
The writ of services and customs to the sheriff to justice some one to do the service he acknowledged.
 The king to the sheriff, greeting. We order you to justice such a one to do to such a  one, rightfully and without delay, the customs and right services which he ought to do  him from his free tenement which he holds of him in such a vill, as in homages, reliefs,  rents, arrears, and other [services], as he [the demandant] can reasonably show that  he ought to do him. Lest we hear further complaint for default of justice. Witness  etc.1 If the tenement is in a borough, let it then be phrased thus: such a one to do such  a one the right services, no mention made of customs.
How pleas are transferred from the courts of lords to the county court.
 It is clear from what has been said before,2 that some writs of right among those  named above3 ought to be determined in the courts4 of lords, and that sometimes by  the default of lords, who are unwilling or unable to do right, they are transferred to  the county court and there determined, in many ways, unless the tenant puts himself  on the grand assise, or the lord king on the petition of the demandant (and sometimes  on the petition of the tenant, but for good cause)5 wishes the suit to be transferred to  his court from the county. We must therefore begin in order from the courts of lords,  where sometimes the lords themselves, sometimes their bailiffs hold court, as where  the demandant claims to hold by free service of a [lord] who is willing and able to  bring the plea before his court and determine it, by the duel or in some other way. If  he is unwilling or unable to do so, for many reasons, either because of lack of authority  or of some emerging or incidental legal difficulty, so that his court fails to do right to  the demandant, then, the default having been properly proved, let the sheriff do right  because of the default of right in the court of the chief lord, by force of the words contained  in the writ, and if you do not the sheriff shall. A court may fail to do right in  many ways, as where the deforciant holds of someone other than him of whom the  demandant claims to hold, because the chief lord then has no power of coercion by  which to bring the deforciant to his court, because of which recourse must of necessity  be had to the county court,6[Also because the chief lord utterly refuses to do  right, or there is no one (or no one may be found) in the court to do right,