In the US, our military has long been able to produce custom Gridded Reference Graphics from overhead imagery. They make the job much easier by taking recent images, which we know depict up-to-fate ground conditions, and combing geospatial data such as elevation, grid lines and road as well as place names to create maps. They can then be shared digitally or printed out on Tyvek or similar material to make them water resistant.
At Milipol, the French Gendarmerie, their national paramilitary police force, also has that capability. But, they can attach the box you see on the table to a helicopter and fly their own aerial photography collection missions. The system combines high res imagery with GPS data to produce mensurated images that can be easily manipulated to make GRGs.
