Anne Grigg-Booth went to a police station to answer bail while over the drink-drive limit, it can be revealed.

Legal restrictions meant the case could not be reported until the conclusion of the trial.

In October she pleaded guilty at Burnley Magistrates Court to drink-driving and was banned from driving for 16 months and given a 12 month conditional discharge.

As part of her bail conditions relating to the murder charges, Grigg-Booth had to present herself to a police station. She reported to Colne police station on Thursday, October 14, believing it was Wednesday, October 13, the day when she was officially due to report.

Grigg-Booth had been remanded on bail by Bingley Magistrates on Tuesday, October 12, charged with the murders and attempted murder.

On October 14 she drove to the police station and officers noticed her breath smelled of alcohol.

She was breath-tested and found to have 68 milligrammes of alcohol to 100 millilitres of breath -- the legal limit being 35. She told officers she had attended a neighbour's farewell party the evening before -- Wednesday -- and did not realise she was over the drink-drive limit.

James Fitzpatrick, for Grigg-Booth said: "The stress of the previous months, culminating with her appearance on the Tuesday at Bingley, resulted in her drinking far more than expected. She walked home in the early hours, went to bed and got up believing it was Wednesday. She believed the court hearing in Bingley was on Monday and had to report two days later.

"She was so anxious not to miss she gave no thought to her condition and drove to Colne.

"She was shocked and ashamed because she had dealt with drink-driving cases in her career and lectured on the dangers of alcohol."