You would have to find someone who counted the validity of the original law ("Thou shalt not seethe a kid in its mother's milk" in Exodus https://www.mechon-mam

You would have to find someone who counted the validity of the original law ("Thou shalt not seethe a kid in its mother's milk" in Exodus https://www.mechon-mamre.org/p/pt/pt0223.htm https://www.mechon-mamre.org/p/pt/pt0223.htm) but did not count any later interpretation or fence around it. Please talk to your participants well before you start this experiment; very few people are going to have an equivocal attitude towards it.