State Aerial photographs?

I know when I went to North Head Artillery School we learned that a "spy satellite" criss-crossed Australia every month snapping merrily away a one-mile-swarth wide photo-negative which we used to spot anything metallic to use for our gun-laying drills.

Unbeknown to most drug-suppliers/growers, everything has a colour-spectrum, especially plants, hint hint, doh, which when the Artillery is finished with them, they hand them over to the Federal police who then hand them over to the State police and low and behold, another crop is destroyed.

When we saw the negatives of Sydney, boy, as a class, were we surprised the amount of hint hint growing in the Basin, lol lol. Unbelievable.

Oh, the colour spectrum for this particular plant showed up as purple.

This site has aerial photos

http://www.lands.nsw.gov.au/survey_maps/maps_and_imagery/aerial_photography

Google earth is just that,aerial photographs.
I saved one of my house.
They also have the moon and the sky full photographed .