Lesson D-Types of Criminal Offense Your course reading states the following: "There is no easy formula for determining which crimes are summary or not." Explain why there is so much grey area here and why our legal system needed to create the category of "hybrid offense" to deal with complexities that arose. Lesson D-Types of Criminal Offense Your course reading states the following: "There is no easy formula for determining which crimes are summary or not." Explain why there is so much grey area here and why our legal system needed to create the category of "hybrid offense" to deal with complexities that arose.