There is no broadcast law against LASER jammers. This is a public frequency of 904nm. You can check out the legalities of this at http://www.radars.com.au
But in your article you mention "laser jammer" but then go on to talk about radar jammers. Two completely different things.
I have a few comments on this...
1. According to the Radiocommunications Act 1992, a radio emission is any emission of electromagnetic energy less than 420 THz, regardless of if it is an intentional or not. 904 nm is about 332 THz, so a 904 nm transmission is a RADIO EMISSION. Section 6 of the act notes that a RADAR device is covered under the act specifically. And therefore also a LASER RADAR operating at 904 nm is still a RADAR.