Many security professionals choose the career because of an interest in the technology of security. Few realize the degree to which a contemporary security office interacts with law enforcement agencies (LEAs) such as the FBI and state, local, and campus police. As the field of information security has matured, the language of risk management is increasingly used to discuss the strategy and tactics of security. Privacy concerns are primary in forming a cohesive and cogent philosophy of information security. Privacy is impossible to achieve without security; security without concern for privacy ignores the human dimension of the rich intellectual legacy that the modern university represents. A security incident has costs that, once accounted for, fade in memory; a privacy violation is a "read-once, write-many" condition. Campus security officers must balance privacy and security issues in dealing with LEAs as part of their institutions' legal obligations. In this article, the author discusses some guidelines for working with LEAs which will give security professionals a sense of control over the situation and confidence that they are responding as they should. Further, this sense of what can only be called professionalism will give law enforcement confidence as well. This confidence, both internal and external, is the foundation on which trust is built, and only with this trust can security professionals fully engage LEAs in a manner that truly protects the privacy of the members of the campus community. (Contains 2 endnotes.)