The fakes are everywhere because the mainland Chinese have developed a taste for colonial HK memorabilia, just search "RHKP" on taobao and you'll know what I mean .
I'm probably pass on this medal because I saw a similar medal with the same style of engraving on a mainland Chinese website.
Hello Peter
Thank you for the warm welcome
The only "other" type of engraving I have seen on Colonial Police medals (both the CPM and the LSGC) is the style I have attached in this reply, which still looks far more convincing than the style I saw on Facebook.
Harold