I call Richie all the time and get his voice mail..lol That is his M.O. Never can catch him on the phone.
Modus operandi (often used in the abbreviated form MO) is a Latin phrase, approximately translated as "mode of operation." The plural is modi operandi ("modes of operation"). It is used in police work to describe a criminal's characteristic patterns and style of work. It is also applied in fraud investigation when talking of behavior patterns that indicate specific types of fraud. eg. False identity is a key MO of retail banking sleeper fraud.
The term is also commonly used in English in a non-criminal sense to describe someone's habits or manner of working, the method of operating or functioning.
A criminal's MO may also be used in offender profiling, where it can also be used to find clues to the perpetrator's psychology.
The method of operation or MO is sometimes confused with a criminal's "signature". While a criminal's MO may change over time, his or her signature will usually stay the same.
