Explain the differences between completed and incomplete criminal acts.
If you can explain the difference between complete and incomplete homework, you can explain the question you asked.
I need help in defining this question: Explain the differences between completed and incomplete criminal acts.
These sites have a definition of all sorts of completed criminal acts. Essentially civil proceedings are not criminal.
http://www.answers.com/topic/criminal-law
http://en.wikipedia.org/wiki/Crime#Crime_types