Here's where to sew those badges on - this is the Kea version but other Sections are pretty much the same.
The basics are easy - place it in the right place and sew!
Being a uniform there are rules - NOT ALL badges are permitted on the uniform.
Badges that can't go on the uniform are called "blanket only badges."
For example; Malvern Group badge and the Anzac Day Badge are blanket only badges - they should not be anywhere on the the uniform or scarf.