The government system is closely modelled on the Westminster parliamentary system and the legal system is based on common law.
The head of state is the king, known as the Yang di-Pertuan Agong. He is an elected monarch chosen from the hereditary rulers of the nine Malay states every five years.
The head of government is the prime minister. The country official language is Bahasa Malaysia or commonly known as Malay language. English remains as an active second language.