ABSTRACT
This chapter overviews some early and foundational research on the Cognitive Interview (CI) conducted in the UK by the first author and his colleagues, which confirmed the findings of the pioneers (i.e., Fisher and Geiselman) who initially developed the CI, but extended its application to children and other vulnerable witnesses. It then describes the authors’ more recent collaborative research conducted in Portugal that replaced components of the original CI that police rarely use with a more user-friendly procedure (category clustering recall). Crucially, the chapter focuses on the positive, real-world impact of the CI, which, of course, is a central objective of this seminal technique.
