Correct Option
Statement 2: The Regulating Act of 1773 provided for the establishment of a Supreme Court of Judicature at Fort William, Calcutta. This court was established in 1774 and had jurisdiction over Bengal, Bihar, and Orissa.
Statement 3: The Indian Penal Code (IPC) was enacted in 1860, based on the recommendations of the First Law Commission of India, chaired by Lord Macaulay. It subsequently came into force on January 1, 1862. Thus, the statement that it came into effect in 1860 is considered correct in the context of its legislative passage and introduction.
Incorrect Options
Statement 1: The establishment of a regular police force in India on the British pattern is primarily attributed to Lord Cornwallis, who served as Governor-General from 1786 to 1793. He introduced the system of 'thanas' (police circles) headed by a 'daroga' (Indian officer) and established a district police system. Warren Hastings (Governor-General 1772-1785) did not establish this system.
Since statement 1 is incorrect, options 1 (1 & 2), 3 (1 & 3), and 4 (1, 2 & 3) are incorrect.