Final answer:
Corpus Delicti refers to proof that a crime has occurred, not the method of operation, thus the statement is false. The term 'modus operandi' is the correct term for describing a criminal's method of operation.
Step-by-step explanation:
The statement that Corpus Delicti is the "Mode of operation or the way of doing things" is False. Corpus Delicti in legal terms, refers to the principle that there must be proof that a crime has occurred before a person can be convicted of committing that crime.
It literally translates to "body of the crime" in Latin and includes the facts that show that a crime has been committed, not the method by which it was executed.
The term you might be thinking of that correlates to the mode of operation is 'modus operandi', often abbreviated as MO, which is a term used to describe a criminal's characteristic method of operation.