UK Legal Details - Sockets - Where is the requirement for separate socket earths to be linked?

[wilmer000]

I have come across a double socket where the earth terminations aren't linked together - Is this illegal (and what regulation do i look at?) or is it allowed, and I just put the loop-earth in one termination and join the unearthed socket with a length of Earth conductor?

 

[nicebutdim]

Only testing will tell

If I'd had time to drive to CEF today, I'd already have the answer.