Military Police Cap Badge - FSW

[Shiny]

Hi All,

I've been googling Military Police cap badges to try and learn how to spot a fake WW1 or WW2 when I came across this on Wikipedia :

Field Security Wing – First formed in 1937, personnel of the F.S.W. wore Lincoln green cap covers and brass shoulder titles on their tunics with the letters "FSP", to distinguish them from the rest of the Corps. They wore the standard CMP cap badge, but unofficially ground down the wording "MILITARY POLICE" from the lower scroll of the badge. In July 1940 the Wing was absorbed into the new Intelligence Corps.

Obviously being on Wikipedia it must be true so what I'm wondering is has anyone heard of this before?

I'm also wondering if this could explain a badge I spotted in a market yesterday or if I'm just making excuses for a very worn badge.

Thanks for the help,

Michael