Is and liberties of Massachusetts is a primary source?

Yes, Body of Liberties of Massachusetts is considered a primary source.

The Body of Liberties of Massachusetts was a legal code adopted by the Massachusetts Bay Colony in 1641. It is considered one of the earliest attempts at codifying the laws of a colony in America. The code was based on the English common law, but it also included some provisions that were unique to the colony, such as the requirement that all trials be conducted by a jury of peers.

The Body of Liberties is a valuable primary source for historians studying the early history of Massachusetts and the development of law in America. It provides insight into the values and beliefs of the early settlers of Massachusetts, as well as the challenges they faced in establishing a new society in a new land.