Ex post facto: (Latin: after the fact) Ex post facto legislation retrospectively makes acts illegal which were committed before the law was passed.

Ex turpi causa non oritur actio: (Latin: No action arises from an illegal cause) A person may not sue for damage arising out of an illegal activity. A person may not sue on an illegal contract, because it is void from the time of its creation.

Examination-in-chief: Questioning of witnesses under oath by the party who called those witnesses (also called direct examination). After the examination-in-chief, the other side”s lawyer may question the witnesses in cross-examination. Thereafter, the first party may re-examine them, but only about issues raised during the cross-examination.

Executor: Person appointed by a testator to administer a will. The executor is a personal representative whose duties include burying the dead, proving the will, collecting in the estate, paying any due debts and distributing the balance according to the wishes of the deceased.

Exhibit: Document or object shown to a judge or jury as evidence in a trial. Each exhibit is given a number or letter as it is introduced, for future reference during the trial.

Express trust: Trust specifically created by a settlor, usually in a document such as a will, although it can be oral. An express trust which deals with land must be in writing.

Extradition: The arrest and handover of a person wanted for a crime committed in another country, usually under the terms of a extradition treaty. A person may not be extradited from Ireland for a political offence.