Quote Originally Posted by rusty View Post
As there is no longer a certificate of approval to check they are able to marry, I think it is now possible to get married.

But as you have already indicated, under a visit visa, you should not get married.
Rusty,
There are now quite a few checks that need to be done, the responsibility has been shifted from the UKBA (COA) to others. Nothing is 100% of course, but those who have authority to organise marriage are now much more aware of the legal requirements and consequences of failure to comply with regulation. First requirement is valid visa.

Even if they somehow managed to get married, they could not legally progress any leave to stay within current immigration rules.