The Guatemala City Transit Police use a colonial pattern helmet
Many police forces around the world still use white sun helmets during the summer months. Interestingly, many of these seem to be based on the colonial pattern helmet.
In the eternal city of Rome police officers use a white colonial pattern helmet
Another view of the Roman police helmet
A Florentine police helmet similar to the Roman pattern, but with an added comb on the top
A mounted police officer in Toronto wears a white colonial pattern helmet
The Hanoi police use a helmet similar to what the North Vietnamese Army used in the Vietnam War.
The Chennai City Mounted Police Officer wears a Bombay Bowler style sun helmet
Possibly an officer of the Luton Borough Police c 1930s.