A known criminal's established habits and mode of work when committing specific offences, especially fraud, matched with characteristics of an unsolved crime to narrow down (limit to a specific list) or profile suspects
A modus operandi is a particular way of doing something. An example of her modus operandi was provided during a terse exchange with the defendant. M.O. a way of doing something that is typical of a particular person or group
1 Latin term meaning "the manner of operation " The means of accomplishing an act, especially, the characteristic method employed by a defendant in repeated criminal acts