The uniform of 1951 was the first one with an open collar, which meant that the colour and style of the shirt worn under it had to be regulated as well. According to uniform statute 393/1952, the shirt was to be either steel grey or white and was to have a semi-stiff foldable double collar.

A steel grey or white collared shirt was worn under the grey summer coat of 1953.

From 1958 onward, officers were permitted to wear a light grey collared shirt as an alternative to the summer coat. Rank insignia were fastened on dark blue removable shoulder straps. A senior constable.

Uniform items from the 1950s and 1960s. Shirts came in two colours, and so did the ties: a dark blue tie for the grey shirt and a black tie for the white one. On festive occasions, it was permitted to substitute a black bow tie for the everyday tie.

While out on traffic duty on a hot day, officers were allowed to take off their uniform coat. The white shirt would not be replaced with anything lighter, however. Officers of the National Traffic Police inspecting a timber truck in the 1960s.