Fair Comment
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
A fair comment (excusing what would otherwise be a libel) is a comment which is either true, or which, if false, expresses the real opinion of its author (as to the existence of matter of fact, or otherwise), such opinion having been formed with a reasonable degree of care and on reasonable grounds.
Steph. Cr. 202.