The Mental Health (Public Safety and Appeals) (Scotland) Bill was introduced on 31 August 1999 [Session 1]
This was a Government Bill. Government Bills before September 2012 were known as Executive Bills.
The Bill was passed on 8 September 1999 and became an Act on 13 September 1999
If the Bill is passed by MSPs, it can then get Royal Assent and become an Act.