Answer:
To advocate for common law
Step-by-step explanation:
The Commentaries on the Laws of England (1765-1769) is a treatise in which Sir William Blackstone fully described and summarized English common law in an understandable and systematic way with the purpose to advocate for common law. In the treatise, Blackstone argues that common law (the body of law derived from judicial decisions of courts and similar tribunals) should be a uniform system of logic: complete and independent and also showed its effectiveness in the past.