According to Sayenko, the tape constantly stops and restarts, showing the evidence obtained only after being picked up by investigators, but never the actual moment of discovery.

The following morning I received a telephone call from the operational team to say that the evidence obtained during this transaction, i.e. tapes and car video footage, was excellent.

A law enforcement official said that the evidence obtained so far pointed to a lone assailant, and that the murder was committed during a robbery.

Shami Chakrabarti, the director of Liberty, said: "The court found that torture and evidence obtained that way is widespread in that country.

Day after day, Night after night, I bury a part of me In order to annihilate the evidence of my living In order to obtain my survival.

"We certainly feel that evidence is compelling and more than enough to obtain a conviction," Mr. Fernandez said.

Even the evidence obtained through the two search war- rants, secured because of her initial statement, could possibly be suppressed.

What evidence the CIA has obtained to support this initial conclusion was not disclosed.

But investigators charged him with harboring illegal aliens, a felony, after uncovering evidence that he had helped some Pakistanis with expired visas obtain housing and a car, according to immigration officials.

The rule under which evidence obtained illegally by the police is excluded from use in court has also caused few major problems, the study concluded.