Every fisherman has their lucky spot, but for the poachers it's likely to prove very unlucky, with the hidden night-vision cameras capturing their every move.
This left the driver with full night-vision while still enabling him to distinguish between the different switches and levers to operate his locomotive.
Given my tiny force of eighty-one observers and the fact that we had no helicopters with night-vision capability, the task of keeping the border under surveillance was at best symbolic.