What is Bar Fee?

Legal Definition
Eng. law. A fee taken time out of mind by the sheriff for every prisoner who is acquitted. Bac. Ab. Extortion.
-- Bouviers Law Dictionary
Legal Definition
In English law. A fee taken by the sheriff, time out of mind, for every prisoner who is acquitted. Bac. Abr. "Extortion." Abolished by St 14 Geo. III. c. 26; 55 Geo. III. c. 50; 8 & 9 Viet. c. 114.
-- Black's Law Dictionary
Legal Definition
A sheriff’s fee due upon a prisoners acquittal.
-- Ballentine's Law Dictionary