James E. Davis (Los Angeles police officer)

James Edgar Davis (February 8, 1889 – June 20, 1949) was an American police officer who served as the chief of the Los Angeles Police Department (LAPD) from 1926 to 1929, and from 1933 to 1939. During his first term as LAPD chief, Davis emphasized firearms training. Under Davis, the LAPD developed its lasting reputation as an organization that relied on brute force to enforce public order. It also became publicly entangled in corruption. Members of the LAPD were revealed to have undertaken a campaign of brutal harassment, including the bombings of political reformers who had incurred the wrath of the department and the civic administration.

Under Chief Davis, civil service reforms were implemented in the City Charter via the ballot initiative process, which insulated the police department from political influence.