This document discusses post-legislative scrutiny, the process of reviewing laws after they are passed. It outlines the origins of post-legislative scrutiny in the UK and the current processes used by the House of Commons and House of Lords. It provides the example of a House of Lords committee that recently reviewed the Inquiries Act 2005. While post-legislative scrutiny allows various stakeholders to have input, government departments often reject recommendations to change laws and civil servants involved may lack expertise in the issues. Therefore, the value of post-legislative scrutiny in improving laws remains unclear.