This document provides an introduction to the collection of papers titled "Secure in the Knowledge". It outlines the background and development of the papers, which aim to support staff working in secure accommodation for young people in Scotland. The introduction describes the structure and content of the collection, including chapters on the history and policy context of secure accommodation, values and ethics, theoretical perspectives, and 27 practice-focused papers addressing various topics relevant to working with young people in secure settings. The overall goal is to help qualify the workforce in secure accommodation to meet new standards in Scotland.