AALL has published a STATE-BY- STATE REPORT ON AUTHENTICATION OF ONLINE LEGAL RESOURCES. This report found that
A significant number of the state online legal resources are official but none are authenticated or afford ready authentication by standard methods. State online primary legal resources are therefore not sufficiently trustworthy. Citizens and law researchers may reasonably doubt their authority and should approach such resources critically.
There are included individual reports of all the New England States.
Source: WisBlawg