Queen Elizabeth II visited Canada House in London on Wednesday to commemorate the 150th anniversary of the Canadian Confederation.
Canada's Governor General David Johnston was caught on camera supporting the 91 year old monarch down a flight of steps as she exited the building, which was seen by some as a breach of protocol with the Royal family.
He spoke afterwards to Canadian Broadcaster CBC:
Well I'm certainly conscious of the protocol.
I just was anxious to be sure that there was no stumbling on the steps.
It's a little bit awkward, that descent from Canada House to Trafalgar Square, and there was a carpet that was a little slippy, and so I thought perhaps it was appropriate to breach protocol just to be sure that there was no stumble.
The Royal Family's website reads:
There are no obligatory codes of behaviour when meeting The Queen or a member of the Royal Family, but many people wish to observe the traditional forms.
It's generally accepted that you do not touch the Queen without her permission.
She has been known to offer handshakes, but other forms of contact are very rare.