A more in-depth look into English legal history resources, including primary sources. secondary sources, commentaries, institutes, dictionaries, and thesauri, is available on the English Legal History research guide.
Many small newspapers existed in the 17th and 18th centuries, and are valuable for the information they contain. For a check on what is available at the Law Library, search under the series Early English Newspapers, or the subject Great Britain -- History -- George II-III, 1727-1820 - Newspapers.