What kinds of subject matter cannot be protected by copyright?

- idea, procedure, method of operation, mathematical concept, principle, discovery or data;
- news of the day or miscellaneous facts having the character of mere items of press information; 
- Constitution and legislation; 
- Rules, regulations and bye-laws, and notifications, orders, directives and procedures issued by the Governmental departments,           Governmental     organizations and Departments; 
- Judicial decisions and orders;