A committee investigating a clash between protesters and police outside the House of Assembly has been granted a three-month extension.

The Parliamentary Joint Select Committee, headed by Progressive Labour Party backbencher Kim Swan, was set up in January last year to examine the events of December 2, 2016.

Mr Swan had indicated last month that the committee was at the “wrapping-up stages”.

Dennis Lister Jr, the Speaker of the House of Assembly, told MPs today the group had been given an extra three months to finish its work.

Several protesters were pepper-sprayed by police officers two years ago during a protest against the redevelopment of the airport.

It was revealed last month that an undisclosed settlement — said to be about $225,000 — had been agreed with complainants who were seeking legal action against the Police Complaints Authority.