A hospital care assistant has told a Dublin Circuit Criminal Court jury that she saw a nurse on trial for allegedly poisoning patients "quite forcefully and quite roughly" give an injection to an elderly patient.

The State pathologist has told a jury that an elderly man who was allegedly poisoned by a nurse died of heart failure that was not related to an injection he received from the accused.

A former colleague of a nurse charged with poisoning two patients has told a jury that she saw her "brutally dart" an injection into one of them before throwing water over him and threatening him.

A nurse has admitted at Dublin Circuit Criminal Court that she should have immediately reported her colleague to her superiors after she saw her use excessive force to inject an unprescribed drug to a patient.

A nurse has told a Dublin Circuit Criminal Court jury that a former colleague on trial for assaulting elderly patients should not have been working unsupervised due to lack of training and alleged "problems".

A nurse allegedly poisoned two elderly men in Naas General Hospital three years ago after using excessive force to administer unprescribed drugs to them, a jury at Dublin Circuit Criminal Court has been told.