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1L - First Year Lesson Topics

Oklahoma Legal Research: Secondary Resources

This lesson will introduce you to important secondary sources for Oklahoma legal research and help you develop strategies for using secondary sources to research Oklahoma legal questions. This lesson is intended to supplement the CALI Lesson on Oklahoma primary sources. In addition to the important Oklahoma secondary sources covered in this lesson, researchers should also be aware of secondary resources that are not Oklahoma specific. For information on secondary resources generally, see the CALI Lesson "Introduction to Secondary Resources."


In the criminal law, culpability can be premised upon either an "act" or (in appropriate cases) an "omission" to act. In this lesson, we examine the concept of culpability for omissions, and we explore the limits of criminal culpability.

Overview on the Religion Clauses

This lesson is designed to provide you with an overview of the religion clauses (which include both the Establishment Clause and the Free Exercise Clause) of the First Amendment to the United States Constitution. The lesson is intended for students who have studied these issues in class, and who wish to refine their knowledge of these clauses.

The Parol Evidence Rule

A hundred years ago, a law professor said of the parol evidence rule, "There are few things darker than this or fuller of subtle difficulties." Many students and professionals who have studied the rule would agree with that assessment. Hopefully this exercise will illuminate the rule. It does so by examining the functions served by the rule, taking the user through a series of questions that can be used to resolve most issues involving the application of the rule. The Uniform Commercial Code enactment of the rule is examined in detail.