A person lawfully invested with the power, and charged with the duty, of taking care of a person and/or managing the property rights of another person. Guardians are typically used in three situations; for an incapacitated senior (due to old age or infirmity), for a minor and for developmentally disabled adults.

The Islamic legal system derived from the religious precepts of Islam, particularly the Koran and the Hadith. It is an Arabic language term meaning a body of moral and religious law derived from religious prophecy.

Any matter of fact that a party to a claim or action offers to provide to prove or disprove an issue in the case. The strongest type of evidence is that which provides direct proof of the truth of an assertion. At the other extreme is evidence that is merely consistent with an assertion but does not rule out other, contradictory assertions, and may be viewed as circumstantial evidence.