The phrase "when all the elements necessary for its execution and accomplishment are present" refers to the stage of a felony called the "consummated" stage. A felony is considered consummated when the offender performs all the acts required for the execution of the felony, and the intended result or crime is fully accomplished. At this point, all the elements that legally define the crime have been satisfied, thus completing the criminal act. This is distinct from the other stages:
- Attempted felony: The offender begins the crime but does not complete all acts necessary for its execution.
- Frustrated felony: The offender performs all acts of execution that would produce the felony, but the crime does not materialize due to causes independent of the offender’s will.
In summary, the felony is consummated "when all the elements necessary for its execution and accomplishment are present," meaning the crime is fully completed and the intended criminal result is achieved.