These days almost every ship is or can be easily tracked. https://www.marinetraffic.com/en/ais/home/centerx:-12.0/centery:25.0/zoom:4 https://www.marinetraffic

These days almost every ship is or can be easily tracked. https://www.marinetraffic.com/en/ais/home/centerx:-12.0/centery:25.0/zoom:4 https://www.marinetraffic.com/en/ais/home/centerx:-12.0/cent... Also, it can be easily checked when the ship left/entered the port.