AMBASSADOR, interaational law. A public minister sent abroad by some sovereign state or prince, with a legal commission and authority to transact business on behalf of his country with the government to which he is sent. He is a minister of the highest rank, and represents the person of his sovereign.

2. The United States have always been represented by ministers plenipotentiary, never having sent a person of the rald of an, ambassador in the diplomatic sense. 1 Kent's Com. 39, n.

3. Ambassadors, when acknowledged as such, are exempted, absolutely from all allegiance, and from all responsibility to the laws. If, however, they should be so regardless of their duty, and of the object of their privilege, as to insult or openly to attack the laws of the government, their functions may be suspended by a refusal to treat with them, or application can be made to their own sovereign for their recall, or they may be dismissed, and required to depart within a reasonable time. By fiction of law, an ambassador is considered as if he were out of the territory of the foreign power; and it is an implied agreement among nations, that the ambassador, while he resides in the foreign state, shall be considered as a member of his own country, and the government he represents has exclusive cognizance of his conduct, and control of his person. The attendants of the ambassador are attached to his person, and the effects in his use are under his protection and privilege, and, generally, equally exempt from foreign jurisdiction.

4. Ambassadors are ordinary or extraordinary. The former designation is exclusively applied to those sent on permanent missions; the latter, to those employed on particular or extraordinary occasions, or residing at a foreign court for an indeterminate period. Vattel, Droit des Gens, 1. 4, c. 6, 70-79.

5. The act of dtigress of April 30th, 1790, s. 25, makes void any writ or process sued forth or prosecuted against any ambassador authorized and received by the president of the United States, or any domestic servant of such ambassador; and the 25th section of the same act, punishes any person who shall sue forth or proseeute such writ or process, and all attorneys – and soliciters prosecuting or soliciting in such case, and all officers executing such writ or process, with an imprisonment not exceeding three years, and a fine at the discretion of the court. The act provides that citizens or inhabitants of the United States who were indebted when they went into the service of an ambassador, shall not be protected as to such debt; and it requires also that the names of such servants shall be registered in the office of the secretary of state. The 16th section imposes the like punishment on any person offering violence to the person of an ambassador or other minister. P Vide 1 Kent, Com. 14, 38, 182; Rutherf. Inst. b. 2, c. 9; Vatt. b. 4, c. 8, s. 113; 2 Wash. C. C. R. 435; Ayl. Pand. 245; 1 Bl. Com. 253; Bac. Ab. h. t.; 2 Vin. Ab. 286; Grot. lib. 2, c. 8, 1, 3; 1 Whart. Dig. 382; 2 Id. 314; Dig. l. 50, t. 7; Code I. 10, t. 63, l. 4; Bouv. Inst. Index, h. t.

6. The British statute 7 Ann, cap. 12; is similar in its provisions; it extends to the family and servants of an ambassador, as well when they are the natives of the country in which the ambassador resides, as when they are foreigners whom he brings with him. (3 Burr. 1776-7) To constitute a domestic servant within the meaning of the statute, it is not necessary that the servant should lodge, at night in the house of the ambassador, but it is necessary to show the nature of the service he renders and the actual performance of it. 3 Burr. 1731; Cases Temp. Hardw. 5. He must, in fact, prove that he is bona fide the ambassador's servant. A land waiter at the custom house is not such, nor entitled to the privilege of the statute. 1 Burr. 401. A trader is not entitled to the protection of the statute. 3 Burr. 1731; Cases Temp. Hardw. 5. A person in debt cannot be taken into an ambassador's service in order to protect him. 3 Burr. 1677.

AMBIDEXTER. It is intended by this Latin word, to designate one who plays on both sides; in a legal sense it is taken for a juror or embraceor who takes money from the parties for giving his verdict. This is seldom or never done in the United States.

AMBIGUITY, contracts, construction. When au expression has been used in an instrument of writing which may be understood in more than one sense, it is said there is an ambiguity,

2. There are two sorts of amiguities of words, ambiguitas latens and ambiguitas patens.

3. The first occurs when the deed or instrument is sufficiently certain and free from ambiguity, but the ambiguity is produced by something extrinsic, or some collateral matter out of the instrument; for example, if a man devise property to his cousin A B, and he has two cousins of that name, in such case parol evidence will be received to explain the ambiguity.

4. The second or patent ambiguity occurs when a clause in a deed, will, or other instrument, is so defectively expressed, that a court of law, which has to put a construction on the instrument, is unable to collect the intention of the party. In such case, evidence of the declaration of the party cannot be submitted to explain his intention, and the clause will be void for its uncertainty. In Pennsylvania, this rule is somewhat qualified. 3 Binn. 587; 4 Binn. 482. Vide generally, Bac. Max. Reg. 23; 1 Phu. Ev. 410 to 420; 3 Stark. Ev. 1021 ; I Com. Dig. 575; Sudg. Vend. 113. The civil law on this subject will be found in Dig. lib. 50, t. 17, 1. 67; lib. 45, t. 1, 1. 8; and lib. 22, t. 1, 1. 4.