• Which police force first used chevrons to denote non-commissioned rank?
• Which force was the first to introduce specially-coloured patrol cars, and what colours were they?
• Who first introduced chequered cap bands?

Those and other questions are answered in this book.

Some other features include:
• Countries are listed in alphabetical order, from Andorra to Venezuela, with sub-sections for Federal, State and municipal services within each country
• A clear history of country’s law enforcement agencies
• Hierarchical rank interpretations have been taken literally from other languages into English, something not attempted before, approximate equivalents previously having been adopted by the police themselves
• Badge illustrations and rank insignia are also included