http://i4pd4zpyhrojnyx5l3d2siauy4almteocqow4bp2lqxyocrfy6prycad.onion/threat-library/techniques/covert-surveillance-devices/video.html
Each time you leave or enter your home, you take note of all the vehicles parked on the street that have a line of sight to your home. Trying not to look suspicious, you note their model, color, and license plate number, either remembering the information or writing it down. After doing this for a while, you will become familiar with the “baseline” of vehicles that park on your street, which will be the vehicles of people who live nearby or their guests.