Most of the cameras out here are fixed placement with induction fields at intersections and interstate so RD's are not going to help as much as say, NAValert.
The bands out here used by motorcycle cops seems to be laser, and Ka/Laser for patrol cars without POP. I cannot confirm any of this though.
I've found some forum information in AU that the vans may be using laser in different countries but cannot find approprate information to back it up for NA.
Anyone have anything to add?