Why are police called five-o???

Question

i never understood

Answer 1

In the late 1960s, early 1970s, there was an action police TV series called "Hawaii 5-0" It was one of the top rated TV shows and played in reruns during the 1980s.

Answer 2

From the TV show "Hawaii Five-0".  The show featured a fake police unit which was named Five O in honor of Hawaii being named the 50th State to join the United States.

Answer 3

Here...

http://en.wikipedia.org/wiki/Hawaii_Five...

Good response angelic one.

Answer 4

Gee, maybe they all drove Mustang 5.0

Book him Danno!