Lieutenant had a Sergeant to assist. 350 officers were supported by 40 radiomen and 59 other staff members. In 1938 1,794,556 vehicles were registered in Illinois, compared to 10,960,668 vehicles registered in Illinois in 2019. There were 2,177 traffic fatalities in 1938 compared to 1,031 fatalities in 2018. In 1940, 14,000 miles of Illinois roads were now paved compared to 1,100 miles in 1922 when ISP was established. In 1941, the ISP became known as the Illinois Department of Public Safety. Also that year, the Illinois State Police Academy held its first class using the Emmerson building at the State Fairgrounds in Springfield. The academy class was 3 weeks long (compared to the current 26-week class). Central headquarters was also moved to 1100 South 5th Street in Springfield and the first State Police Crime Lab was started there and was very well equipped. Planning for a mobile crime lab was underway. Following World War II, legislative changes allowed ISP manpower to increase to 500. This allowed ISP to hire returning war veterans who were honorably discharged. Approximately 150 veterans were added to the ISP force as a result of this legislative change. Uniforms also took on a new look after the 23-year run of the World War I cavalry-style uniform. Motorcycles were on the decline and were abandoned by ISP in 1948. A merit system, known as the Illinois State Police Merit Board, was created in 1949. This board certified initial appointments and those qualified for the next higher rank. This was a major change as new officers no longer needed to be appointed by a politician. The department name, along with uniforms, would undergo another change in 1954. The ISP would now be called the Illinois State Highway Police Department of Public Safety. The uniform change included the most distinctive being the adoption of the Stetson hat with a Montana peak. In 1957, legislation allowed for 1,100 full time officers and an additional 100 officers on contract to the Illinois Toll Highway Authority. Approximately 600 new officers were trained between July 1957 and July 1958. ISP added airplanes to its fleet in 1959 with the purchase of three single engine airplanes used by six pilots. Also, in 1959, ISP hired a Federal Bureau of Investigation agent to create and lead the Bureau of Special Investigation, which was reorganized in 1962 and called the Crime Section. Today this is known