The full effect of the Supreme Court of Canada transformational decisions in R. v. Oickle (2000)[1] will not be realized for several more years. However, their influence on interrogation practices, since 2000 has been dramatic in both volume and nature of decisions where Oickle concepts have been applied. There is a need for an extensive review of how the landmark S.C.C. case has, and currently is, being applied with respect to interrogations. The myriad decisions emerging from Oickle will be referred to as ìOickle derivatives.î This is the first part is a series that researches and reviews the Oickle derivatives for the purpose of identifying best practices.