 McQuillan's ruling was not binding on other Supreme Court justices, but was considered significant by the New York Times because of its detail and the fact that McQuillan was considered to be "one of the leading authorities" on the state's criminal law.In the case of playwright Miguel Pinero, McQuillan ruled that there was no justifiable cause for the arrest of Pinero and two other men on the 1978 charges of armed robbery, and that all evidence taken in the arrest resulted from an illegal search and seizure, and was therefore inadmissible in court.McQuillan also became an advocate for non-discriminatory jury selection.