How do you wear a whistle and chain on a police or security uniform?
The whistle chain attaches to the button for the right epaulet
(shoulder strap) of your uniform shirt. The chains come in 2
varieties: a button-hook style and a clip on style. The button hook
style is more common. Unhook the shoulder strap, attach the button
hook under the button, then re-button the shoulder strap over the
end of the whistle chain. The chain will then go from your shoulder
strap to your right shirt pocket. If you are carrying the whistle
on the outside, you need a whistle hook. They usually come with a
clasp style back. Attach the whistle hook to the center of the flap
for the right shirt pocket. Then attach the whistle chain to the
whistle and hang the whistle on the hook.