The brazen manner in which the crimes were committed is unusual - both thefts took place during the middle of the day when the hospital would have been extremely busy and no attempt appears to have been made to disguise what was happening.
It is particularly shocking that on both occasions the offenders targeted elderly patients while they were in the process of receiving medical care.
Elderly and vulnerable patients at a hospital in Surrey have been targeted in a series of thefts. Cash, jewellery and bank cards were taken from St Peter's Hospital in Chertsey in two thefts on the same day.
Police want to track down a woman seen on CCTV at the time the thefts were carried out.