In English law, a beau pleader is a writ, whereby it is provided that no fine shall be taken of anyone in any court for fair pleading, i.e. for not pleading aptly, and to the purpose.
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editReferences
editThis article incorporates text from a publication now in the public domain: Chambers, Ephraim, ed. (1728). "Beau pleader". Cyclopædia, or an Universal Dictionary of Arts and Sciences (1st ed.). James and John Knapton, et al. [1]