Get UK Law Questions Answered by Verified Experts
The employer can terminate the contract of employment if they find out because the employee will have broken an implied term in the contract of "trust and confidence".
I hope this helps kindly click accept so that I get credit for my answer
If the reference did not lead to a job you are in then nothing will happen even assuming they had your details.
Any consequences for you are extremely unlikely. The employer would have to show that you owed them a legal duty of care and it is very unlikely they can prove anything. There are all sorts of degrees of working for someone. She could have worked on something for you at home or a one off project sufficient for you to say you have employed her and no one can really argue with or dispute that.