He was selling across state lines. He's in Pennsylvania; the person who died from his contaminated dairy products was in Florida. That's why the federal government got involved. Interstate commerce is regulated.

You can buy raw milk in many states, but you can't ship it to another state.

I'm perfectly okay with all sales between states being regulated. Otherwise things could get really nasty, really fast. You only have to look at the history of food and medicine regulation to know why.

Source: https://www.foodsafetynews.com/2016/07/inspection-of-millers...