The Scrum checklist is a simple tool that provides guidelines to assess your current implementation of Scrum or help you adopting it. Created by Henrik Kniberg, the author of “Scrum from the Trenches”, they incorporate his experience gained during years helping companies getting started with Scrum and many meetings with other practitioners, trainers and Scrum coaches.
The checklist is divided in five sections: The Bottom Line, Core Scrum, Recommended but not always necessary, Scaling, Positive indicators. Amongst the proposed items to verify, you could find things like “PO is empowered to prioritize” or “Everyone in the team participate to estimating. The checklist is available in PDF format and translated version exist in Danish, French, German, Hebrew, Italian, Japanese, Korean, Polish, Portuguese and Spanish.
The Scrum checklist page: http://www.crisp.se/scrum/checklist