Attorney-general Simon Corbell says the new legislation will ensure the right people are punished for drug crimes.
All up, 44 new synthetic psychoactive substances will be made illegal, including N-Bomb which was responsible for the death of 17-year-old NSW man Henry Kwan in 2013.
The legislation will also change the amount of certain drugs ACT residents can carry before facing serious drug trafficking charges.
If they are passed, Canberrans will be able to carry three times as much ecstacy and twice as much cocaine without being labelled drug traffickers.
It should be noted however, that carrying any amount of any illegal substances is still illegal.