Australian Strategic Policy Institute executive director Peter Jennings believes the Greens’ policies in defence and national security are “crazy”.

The policies have come into question after some “naive” choices.

Mr Jennings told Joe Hildebrand that national security briefings need to come into effect to prove how wrong the policies are.

“It’s difficult to know where to start.

“It’s crazy in so many different dimensions.”

Press PLAY below to hear them discuss the policies