Baghdad, Iraq ? Iraqi police arrested eight Sunni Arabs for allegedly plotting to kill the judge who prepared the indictment of Saddam Hussein, authorities said Sunday, the day before the ousted leader’s trial for crimes against humanity resumes.

Former U.S. Atty. Gen. Ramsey Clark arrived in Baghdad to help the defense but might not be allowed in court Monday when the first of up to 35 prosecution witnesses take the stand.

Tight security surrounds the proceedings, which are restarting after a five-week recess in a specially built courtroom in the heavily guarded Green Zone. The precise starting time was not announced due to fear of attack by both Saddam’s supporters and opponents.

Orders to kill judge

The eight alleged plotters from Iraq’s Sunni Arab minority were apprehended Saturday in the northern city of Kirkuk, police Col. Anwar Qadir said.

Iraqi women hold pictures of their relatives during a demonstration asking for the death penalty for ousted dictator Saddam Hussein on Sunday in Najaf, Iraq. According to relatives, people shown in the pictures were killed by Saddam Hussein's regime after the suppression of a Shiite uprising in the south of Iraq in 1991.

He said they were carrying written instructions from a former top Saddam deputy, Izzat Ibrahim al-Douri, ordering them to kill investigating judge Raed Juhi, who prepared the case against Saddam and forwarded it in July to the trial court.

Al-Douri is the highest ranking member of the Saddam regime still at large and is believed to be at least the symbolic leader of Saddam loyalists fighting U.S. forces and Iraq’s new government.

“As an Iraqi citizen and a judge, I am vulnerable to assassination attempts,” Juhi told the Associated Press. “If I thought about this danger, then I would not be able to perform my job … I will practice my profession in a way that serves my country and satisfies my conscience.”

Complicated trial

Saddam and seven co-defendants are charged in the killing of more than 140 Shiite Muslims after an assassination attempt against the former president in the Shiite town of Dujail in 1982. Convictions could bring a sentence of death by hanging.

Insecurity from the predominantly Sunni insurgency has complicated efforts to put Saddam on trial and forced draconian measures. For example, names of four of the five trial judges have been kept secret and some of the 35 witnesses may testify behind curtains to protect them from reprisal.

Defense lawyers had threatened to boycott the proceedings after two of their colleagues were slain in two attacks following the opening session Oct. 19. However, lawyer Khamees al-Ubaidi told the AP on Sunday that the defense team would attend after an agreement with U.S. and Iraqi authorities on improving security for them.

Former AG offers assistance

On the eve of the hearing, Clark and former Qatari Justice Minister Najib al-Nueimi flew to the capital from Amman, Jordan, to lend weight to the defense team. Both have been advising Saddam’s lawyers and support their call to have the trial moved out of Iraq because of the violence.

However, neither Clark nor al-Nueimi has been officially recognized by the court as legal counsel. U.S. and Iraqi officials said Saddam’s chief lawyer, Khalil al-Dulaimi, did not officially request permission for any foreign attorneys to attend the trial.

Iraqi law permits foreign lawyers to act as advisers but requires that those arguing cases in court must be members of the local bar association.

Clark, who served as attorney general under President Johnson, wrote last month that Saddam’s rights had been systematically violated since his December 2003 capture, including his right “to a lawyer of his own choosing.”

Clark and others say a fair trial is impossible in Iraq because of the insurgency and because the country is effectively under foreign military occupation.

Demanding execution

On Saturday, hundreds of supporters of radical Shiite cleric Muqtada al-Sadr rallied in Baghdad to demand Saddam’s execution.

Separately, the leader of the biggest Shiite party, Abdul-Aziz al-Hakim, accused the court of “weakness” for not having sentenced Saddam to death already.