The Chief Executive of Colchester Hospital has apologised to patients who he says have been "let down" by the trust.
Dr Gordon Coutts was giving his reaction to today's news that the hospital has been reported to Essex Police following complaints from staff that they were being asked to falsify data on cancer patients.
Staff told inspectors they were "pressured or bullied" to change data relating to patients to make it look as if they were being treated in line with national guidelines.
Colchester hospital has now set up a special helpline so any cancer patients or relatives who have concerns can get in touch.
The number to ring is 0800 028 2026 and it will be staffed from 8am to 8pm seven days a week.