The article explores how courts in different countries review and control the reasoning processes used by government agencies. Countries like England, Australia, and New Zealand focus on improper purpose, irrelevant considerations, and mandatory considerations. Other countries like France, Canada, the US, South Africa, Germany, and China have different approaches, such as broader scrutiny of reasoning processes or assessing outcomes instead. The study suggests that different legal systems have varying ways of overseeing administrative decision-making, which can impact the final outcomes.