I have installed wireless IP cameras at my house in the mountains with Blue Iris software to allow 24/7 monitoring of the premises. This system has built-in motion sensors and night vision. When the motion sensor is tripped, two pictures are sent to my email account. A short video is also made and recorded. Without going into details, this house is in a very remote location with few people in the immediate vicinity. However, anyone doing surveillance within the radius of one mile would be noticed and reported. The cameras are inconspicuous but effective as shown here. The individual in...