Modus operandi - someone's habits of working, particularly in the context of business or criminal investigations. https://en.m.wikipedia.org/wiki/Modus_operand

Modus operandi - someone's habits of working, particularly in the context of business or criminal investigations. https://en.m.wikipedia.org/wiki/Modus_operandi https://en.m.wikipedia.org/wiki/Modus_operandi