After witnessing violence up close as a child, he became interested in understanding why people commit crimes.
It was the starting point for a career both as a criminologist and a hip-hop musician.
- It took me to both forensic psychiatry and the correctional service before I have now landed a job at the youth center here in Uppsala, says Björn Moberg.
"Goalers have no poles"
Gangster rap and harsh language among young people have made Björn Moberg want to spread alternative music to today's children and youth.
Something he describes has already received a good response.
- I take part in incredibly sad stories through work and there I can help individuals - but through music I can spread the same message to many more people, says Björn Moberg.
In the clip: Hear Criminologist's music - as well as thoughts about today's youth and crime.