"(1) A person discriminates against a woman ... if- (a) on the ground of her sex he treats her less favourably than he treats or would treat a man"
"Staff will be eligible to apply for posts one band of responsibility higher than their responsibility level on the current structure."
"Regardless of whether you have been slotted in or not you may apply for other posts in the structure. You may only apply for posts which are one band of responsibility higher than your responsibility level in the current structure or posts in the same responsibility level as you are currently in."