A panel of experts has produced a Statement of Principles of Christian Law, drawn from an examination of their internal regulatory instruments. These principles are offered for further examination by comparative scholars of church law, as an expression of shared ecclesiology, and in furtherance of the ecumenical endeavour.

Norman Doe's book Christian Law compares and contrasts the internal regulations of churches and seeks to identify principles common to churches across the denominational spectrum. This response to Doe's work reviews the religious questions that have come before the House of Lords and Supreme Court since 2004 and seeks to identify the principles governing the secular courts' approach to religious questions. The relationship between those principles and the principles outlined in Christian Law is far from clear. While an understanding of the rules of particular religious bodies is sometimes necessary for secular judges deciding civil rights in a religious context, in most cases the courts are not concerned with the conformity of religious beliefs with religious laws, but simply with protecting the freedom to hold and manifest those beliefs.