A woman carried out a campaign of intimidation against staff and patients at two Bradford hospitals, a court was told.

On one occasion Alex Kaye, 39, a former mental health patient, smothered tomato ketchup over herself - apparently to represent blood - at an entrance to St Luke's Hospital on June 13, 2006.

Bingley magistrates head that her actions sparked a string of "very threatening" incidents of harassment as she stalked hospital staff, verbally abused workers and intimidated patients by taking photographs and videos of them while they lay in their hospital beds.

Evidence presented to magistrates, who were considering an anti-social order against her yesterday, detailed 21 incidents of harassment between June, 2006, and January, 2007.

In June, 2006, Kaye boasted she knew the address of one worker, adding "you never know when it might come in handy".

She then turned up at the woman's Eldwick home and banged on the door until the woman dialled 999 because she "was frightened for the safety of her family," a report by Bradford Council's anti-social behaviour team and West Yorkshire Police states.

In another incident, she visited the home of Dr Coleen Heenan, a psychotherapist, shouted abuse and pushed a note through her door, accusing her of being a "murderer and a thief".

Under the Asbo's terms, Kaye, who lives off Heaton Road, Bradford, will only be admitted to A&E at Bradford Royal Infirmary in an emergency or if she has an appointment.

She has been banned from the physiotherapy department and banned from communicating with four named staff.

Criminal proceedings for harassment against Kaye were expected to be dropped by Bradford Magistrates today.

Kaye's solicitor Stephen Winehouse said: "This incident was a year and a half ago and is set against a background of a patient who was suffering from mental health problems was ejected from the hospital. Her health has now improved and she is looking to get on with her life."

A spokesman for Bradford Teaching Hospitals NHS Foundation Trust said: "This case highlights our zero tolerance policy against violence and aggression towards staff, patients and visitors."