Ok, someone applies for a graduate job in, lets say, September 07. The salary offered is 25k. They get offered a role finally in June/July 08 to start in late November 08. Now sometime since Sept 07 the salary for new applicants goes up to 27k. Some of these 'new applicants' will be starting in late Nov - the same as the original applicant.
It seems quite unfair that two people, both starting a job on the same date with the same experience, will be getting two different salaries. Is there any 'legal', or other, way to argue the lower salary person to get a 'pay rise'???