Hmm. Not sure if this is what you are looking for, but there have been specific decisions by the Church at different times which have addressed the obligation of Christians to the Law. The most dramatic was the Council of Jerusalem, which is reported in Acts 15. At this time the specific question had to do with the conversion of Gentiles, and whether Gentile Christians had to submit to all of Jewish Law (beginning with, did they have to be circumcised before they could be baptised, and then did they have to observe all the dietary laws, etc, after baptism). The Council determined that they only needed to be held to the prohibitions against idolatry, unlawful marriage, and the consumption of blood.
Later decisions addressed such issues as moving the Sabbath observance to Sunday.
If there are specific items you are wondering about you may be able to get help finding answers here . . .