MODUS - means way.
eccl. law. Where there is by custom a particular manner of tithing allowed, different from the general law of taking tithes in kind, as a pecuniary compensation, or the performance of labor, or when any means are adopted by which the general law of tithing is altered, and a new method of taking them is introduced, it is called a modus decimandi, or special manner of taking tithes.
MODUS OPERANDI - Way of operating. A term often used in police work, abreviated "m.o.", refering to the particular way a certain criminal performs his criminal act.
This entry contains material from Bouvier's Legal Dictionary, a work published in the 1850's.
Courtesy of the 'Lectric Law Library
Latin term meaning "the manner of operation." The means ofaccomplishing an act, especially, the characteristic method employed by adefendant in repeated criminal acts.