Police say many of the offences occurred in the Day Case Theatre Unit.
A nurse has admitted a series of sexual offences against patients and staff at the Royal Hallamshire Hospital in Sheffield.
Theatre nurse Paul Grayson admitted to 13 voyeurism charges, two counts of sexual assault, 1 of sexual touching and another of taking an indecent image of a 17-year-old child.
Mr Grayson denied three charges of making indecent images of children, which relates to 123 pictures and three videos across categories A, B and C.
Police say many of the offences occurred in the Day Case Theatre Unit in the hospital between 2017 and 2020.
Three of the victims could not be identified based on the video records seen by Police.
Mr Grayson is currently suspended from the Nursing and Midwifery Council (NMC) register, so he is currently not able to work as a registered nurse.
An extensive investigation.
Mr Grayson was bailed with the instruction to stay away from the Royal Hallamshire Hospital.
Speaking when Mr Grayson was charged last year, Chief Superintendent Shelley Hemsley, district commander for Sheffield, said: “I know this case is extremely unsettling.
“These charges follow an extensive investigation carried out by officers in our Protecting Vulnerable People department.
“Despite significant and wide-ranging enquiries by the team, who have worked closely with the Sheffield Teaching Hospitals NHS Foundation Trust, it is highly unlikely that the three unidentified women will ever be identified as all existing lines of enquiry have now been exhausted.
“Despite this, we have pursued charges on behalf of these women so that the judicial process can continue.”
District Judge Tim Spruce referred the case to the Sheffield Crown Court.