According to a recent study conducted by researchers at Michigan State University, the security guard industry, by and large, lacks uniform standards and training requirements. Despite the fact that there are more than one million private security guards in the U.S. who outnumber police officers by a ratio of 3 to 1, the study found that regulations governing the profession are scant. Mahesh Nalla, the study’s lead investigator and a professor of criminal justice at MSU, said that the goal of the study, which was published in Security Journal, was to evaluate minimum legislative standards covering the guard industry from 1982 to 2010.