This document outlines the NHS Advocacy casework process from beginning to end. It discusses the key principles of evidencing sound decision making and providing a good customer experience. The process begins with an initial assessment of the complaint to determine if it is properly made, within the organization's remit, and if local procedures have been exhausted. If suitable, a further assessment is done to evaluate issues like time limits and alternative legal remedies. An investigation may then be proposed if there is an indication of injustice that has not been remedied. The investigation gathers evidence, seeks professional advice, drafts a report for comments, and issues a final report and compliance check. Learning is also shared through case summaries and themed reports.