Admitted to the bar of New York, Professor Davis was a trial attorney in the Criminal Defense Division of the Legal Aid Society in New York City, where he spent eight years defending the rights of the indigent accused and attempting to change the criminal justice system. After two years as a clinical instructor in the Criminal Law Clinic at New York University School of Law, training third-year law students to be criminal defense lawyers, he came to Touro, where he has taught primarily in the area of criminal law and procedure. He was also chair of the board of the Andrew Glover Youth Program and a member of the Board of the Suffolk County Chapter of the New York Civil Liberties Union. Professor Davis's litigation experience and publications have focused on the area of governmental misconduct, particularly police brutality. He has advised and counseled whistleblowers, represented those subjected to police brutality, both in the criminal courts and the civil courts, studies police departments, and been Special Counsel to the Suffolk County Legislature Public Safety Committee's 1987 Investigation of Law Enforcement in Suffolk County. He has also worked on developing innovative remedies for governmental misconduct through the use of private criminal prosecutions and citizen access to grand juries. In recent years, he has studied and written about the need to expand the role of justice in legal education, proposing schools of justice. He is also currently writing about the teaching of lawyering tactics to lawyers and law students.