Bertil Hagvall began competing with dogs in the late 80’s in Norrköpings Brukshundklubb. He is a recognized A1-judge and is an active compete figurant in the Swedish Dog Security section IPO (and Swedish protection), where he's been active for 15 years (SM-Sunne 2004). He’s also educated in the Swedish Air Force as a Dog Service Instructor.

In 2006 he began to compete together with Bisther in championships, and continued doing so until late 2010, showing a participation record of five IPO/BHP Swedish championships.
Test results with Bisther.

Since 2009 he has been competing together with Etza.