A serial hoax caller who targeted Bradford Royal Infirmary and the Samaritans with bomb threats while on bail for similar offences has been sent to the city’s Crown Court for sentence.

Bradford and Keighley Magistrates warned Jacqueline Hustler that she had committed serious offences and their powers of punishment were insufficient to deal with her.

Partially-sighted Hustler, 46, was helped into court yesterday, when she pleaded guilty to six further offences while awaiting sentence at Bradford Crown Court for three offences of communicating false information with intent on October 29 by saying there was a bomb in the main entrance to branches of Mark & Spencer.

In November, a judge adjourned sentence on Hustler for the preparation of reports from the probation service and a psychiatrist. Hustler, of Moorgate Avenue, Bradford Moor, Bradford, wears dark glasses and walks with a stick. She was said by her barrister to be suffering physical and mental problems.

While on bail, she struck again with another string of bogus bomb alerts on December 7.

Speaking in a hesitant, barely-audible whisper, Hustler admitted communicating false information to induce a false belief that a bomb was present in the reception at Eccleshill Community Hospital, Bradford Royal Infirmary, Bradford’s Morley Street Resource Centre, the Samaritans and to Cath Dibb that there was a bomb at her workplace.

Hustler also pleaded guilty to sending indecent or grossly offensive text messages to Margaret Foster, between December 5 and 8, for the purpose of causing distress or anxiety.

Prosecutor Vincent O’Malley said Hustler had already pleaded guilty to other similar offences at the crown court.

“The obvious suggestion is to send all these matters to join that,” he said.

Magistrates bailed Hustler on condition that she lives and sleeps each night at her address and does not ring 999 except in an emergency.

The Chairman of the Bench told her: “You do realise that these are serious offences and the punishment for them is greater than we can give you here at the magistrates’ court.”

He warned that any breach of bail would land Hustler back in court.

A year ago, she was before magistrates for making repeated hoax bomb threats to Asda Living in Forster Square, Bradford, while serving a community sentence for previous hoax calls.

In February 2011, Hustler admitted making more than 200 hoax phone calls to emergency services in West Yorkshire.