or MO) is an individual's habits of working, particularly in the context of business or criminal investigations, but also generally.
[1] The term is often used in police work when discussing crime and addressing the methods employed by criminals.
[3] It largely consists of examining the actions used by the individuals to execute the crime, prevent its detection and facilitate escape.
[1] A suspect's modus operandi can assist in their identification, apprehension, or repression, and can also be used to determine links between crimes.
When a noun with an attribute in the genitive is pluralised, only the head noun normally changes, just as in English with "of": "a fact of life, two facts of life" (unlike, for instance, les modes opératoires in French).