1. Introduction
2. The Right to freedom of speech
3. History of the D-Notice system in the U.K. to 1945
4. History post 1945 and current operation of the D-Notice system in the U.K.
5. History and operation of the D-Notice system in Australia
6. The Use of the criminal law in relation to the disclosure of sensitive information
7. Injunctions to restrain a breach of the criminal law - U.K. and Australia
8. The Use of the civil actions of breach of confidence and copyright
9. National security and The state
10. Free speech and national security
11. The Government, media and judiciary
12. Recommendations and conclusion.