Katsav brought the investigation on himself two months ago by handing the Attorney-General, Menachem Mazuz, a letter accusing the former employee of trying to blackmail him into finding her a new job.

The police called her in for questioning, at which stage she spelled out her story.

Chion Amir, lawyer for the President said he would co-operate with the police.

The investigation is expected to last for several months, APA reports.