In many states it is illegal to buy due to a small amount of deaths. Problem is that some people do not know how to treat the milk. Imagine you have a piece of fruit. This fruit will mold if not refrigerated and discarded after a few days. Raw milk is good for 3 days only in the refrigerator. It is good to place in the freezer after that.
Raw milk MUST be boiled for one minute or brought to the point of boiling to remove the bacteria and toxins. If you do these simple things you should be safe but if your state outlaws the use of raw milk, I too would not recommend it to you but must recommend you give up milk altogether as I have.