Defamation is a topic that is appearing over and over again in Thai newspapers nowadays, so it's nice to see a lesson plan someone has come up with in Great Britain on this topic.
The worksheet is divided into three clear sections (called "stages"). It would be nice, if each section clearly indicated what it was about with a heading.
Section one defines defamation, but the actual definition is probably a lot more complex than the one given here. It was in the Thai article I wrote a lesson for recently, at least.
"Cases" would be the best title for stage two. Students read and discuss cases and debate whether they constitute defamation or not. More realistic cases or at least more complex and realistic facts taken from real cases would be nice here.