The Underlying Law Act 2000 adopted the sources of the underlying law as customary law and the common law of England in force immediately before independence. The Act provides for methods and processes for developing the underlying law.
For commentary on the Act and its implications, see:
The Papua New Guinea National Parliament website includes Acts as passed 2012-current
Papua New Guinea has a unicameral National Parliament. Parliament was first created in 1964 as the House of Assembly of Papua and New Guinea. It became the National Parliament of Papua New Guinea in 1975 at independence.
See more on the About our Parliament page on the Parliament website.