What is Messenger?

Legal Definition
A person appointed to perform certain duties, generally of a ministerial character.

2. In England, a messenger appointed under the bankrupt laws, is an officer who is authorized to execute the lawful commands of commissioners of bankrupts.
-- Bouviers Law Dictionary
Legal Definition
One who bears messages or errands; a ministerial officer employed by executive officers, legislative bodies, and courts of justice, whose service consists principally in carrying verbal or written communications or executing other orders. In Scotland there are officers attached to the courts, called "messengers at arms." An officer attached to a bankruptcy court, whose duty conslsts, among other things, in seizing and taking possession of the bankrupt's estate during the proceedings in bankruptcy. The messenger of the English court of chancery has the duty of attending on the great seal, either in person or by deputy, and must be ready to execute all such orders as he shall receive from the lord chancellor, lord keeper, or lords commissioners. Brown.
-- Black's Law Dictionary
Legal Definition
One who carries a message with no discretionary authority and without power to bind his superior. See 70 Cal. 169, 59 Am. Rep. 404, 11 Pac. 686.
-- Ballentine's Law Dictionary