From The Australian:
Once a month, Alexander Downer signs a certificate banning adherents of Falun Gong from displaying banners and making excessive noise outside the Chinese embassy in Canberra.
The Foreign Minister has been doing so for the past two years because, as his department explains it, he has determined that in accordance with the provisions of the Vienna Convention, fixed banners or signs, including those on vehicles, together with amplified noise, “impair the dignity” of the Chinese embassy.
The real reason is that the Chinese, who call Falun Gong an “evil cult”, complained about signs that read “Truthfulness, Compassion, Tolerance” and “Stop the Killing”, as well as the playing of exercise music with a Chinese voice-over.