If you follow discourse on this subject, you will see an intent to obscure research into dog attacks and mislead reports on dog type from places like r/pitbull.

This question could be answered by genetic dog breed testing of dangerous dogs, but that’s not law anywhere IIRC. That Purdue study is, for lack of a better term, normalized aggression research on breeds which is valuable. They mention Dachschunds being high on multiple stats, but a Dachschunds ability to maul is very different from larger type dogs like German Shepards or Pitbulls.

People who argue “bad training” purposefully ignore the idea and influences of domestication, as a whole, and don’t mention genetically influenced behaviors from other animal species.

We should all be supporting research into dog types and general safety / behavior of these (generally) wonderful creatures that we domesticated and live with in close proximity.