modus operandi
Pronunciation:
/ˈmɐʉ.dɘs ˌɔp.ɘ.ɹɛn.dɒe//ˈməʊ.dʌs ˌɒp.ə.ɹæn.daɪ/noun
Definitions
A person or thing's normal mode of operation.
(law enforcement) 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.