- When it comes to attacking animals, it is a relatively simple way to cause harm, gain power and dominance, influence the environment and control the environment, says Sven Å Christianson, professor of psychology.

Sven believes that it may be about a young person, and that it is now important to take the crime seriously, because there is a risk that the person may later choose to attack people.

Click on the clip to hear the professor about why someone chooses to attack animals and what it can lead to.