This is because the Civil Partnership Act 2004 contains provisions (sections 255 and 259) enabling the Government to amend and even repeal other legislation in order to give full effect to the purposes of the Act. This includes even amending and repealing church law. The power in relation to church law is exercised by statutory instrument approved by both Houses of Parliament.
This is why separation of Church and State is a good thing. Mix them, and all of a sudden you have the state dictating religious policy.
The government should not be making the rules or the doctrines of any Christian church. I ain't no antidisestablishmentarian!
**change Canon Law**
Can this be done?