He rose to the position of assistant chief before retiring after 23 years in 1995 .
White started as a policeman in 1972 with the Metropolitan Police Department of the District of Columbia , Washington , D.C. .
White rose to the position of assistant chief before retiring after 23 years in 1995 .
White started as a policeman in 1972 with the Metropolitan Police Department of the District of Columbia , Washington , D.C. .