Constabulary liquidity

Nowadays we would expect robots to be powered by electricity. When Leonardo invented robot police, he only had hydraulics as a power source. They survived to this day because the were singularly good at reacting fluidly to changing situations, and generally going with the flow of evolving events. Mind you, they had their limitations, especially during winter and apparently quite a few evaporated when they felt the heat.
Still, you can see what the city fathers mean by maintains a reservoir of police.Read more