^Security locks as in 'no one comes in' or is it the 'no one falls out'-sort? -I have both types you see; I live on the ground floor and need to be able to have a window open when I'm not home... and I have a cat so I also need to make sure it doesn't get out into the street.
looking for something else (more abut that at a later time) when I passed something in the shop I couldn't live without: Star Trek Vault
(apparently mine is the UK-version).
Here's a video of someone leafing through the other version (the one without the slip-case)...