Gail Caldwell, Director of Pharmacy, NHS Greater Glasgow and ClydeiHealth and Sport Committee, Official Report, 4 February 2020, Col 7, Jonathan Burton of the Royal Pharmaceutical Society in ScotlandiHealth and Sport Committee, Official Report, 4 February 2020, Col 7 and Dr Sheuli Porkess of the ABPIiHealth and Sport Committee, Official Report, 18 February 2020, Col 27 said once a medicine had been dispensed to a care home or to a patient, and it had left the control of the pharmacy, the pharmacist could no longer be assured of its quality and so, even if returned unused and unopened, it could not be re-dispensed to another patient.