I’ve never seen a cholov yisrael farm, but I’ve been told that the mashgiach witnesses the milking.
I said that there’s no financial incentive [in the United States] for adulterating cow’s milk with milk of beheimos t’maios. I’ll expand upon that — there’s no financial incentive for adulterating it with any kind of milk. Goat’s milk and sheep’s milk is considerably more expensive than cow’s milk.
I was skeptical of RD’s claim that it’s illegal to sell milk from beheimos t’maios in the US, but then I found a members-only website that advocates for camel’s milk. In order to buy camel’s milk on this website, you have sign a disclaimer that’s full of gobbledygook about how the 1st and 14th amendments give you the right to buy camel’s milk. That leads me to believe that it really is illegal to sell camel’s milk in the US.