Israeli MPs are debating a decision by the attorney general not to charge Prime Minister Ariel Sharon over his alleged role in a bribery scandal.
Sharon was foreign minister at the time
Justice Minister Tommy Lapid is attending the law committee meeting, but Attorney General Menachem Mazuz has cancelled his appearance.
The Supreme Court is to hear petitions next Tuesday against Mr Mazuz's ruling.
He said there was insufficient evidence to back claims that Mr Sharon received large sums from a property developer.
The long-running allegations stem from the so-called Greek Island affair.
Speaking before the parliamentary debate, Likud lawmaker Gilad Erdan strongly attacked Mr Lapid and Supreme Court Justice Edna Arbel.
"We are facing a justice minister who, to my regret, is covering up a very, very serious affair," Mr Erdan told Israel Radio.
PRIME MINISTERIAL SCANDALS
Yitzhak Rabin: Resigned in 1977 because his wife infringed foreign currency regulations by holding a US bank account
Benjamin Netanyahu: Lost 1999 election while facing allegations of keeping gifts that should have gone to the state and misusing state funds - charges eventually dropped
Ehud Barak: Was questioned over fund-raising irregularities in 1999 election campaign - denied wrongdoing, saying he had no role in fund-raising
MPs are said to have been angered by Mr Mazuz's decision to cancel his appearance.
But the justice minister told army radio that the attorney general's decision was justified - he did not want to be seen as influencing the Supreme Court debate on the issue.
"The legal issue is before the Supreme Court. Anything that would have happened [at the meeting] could be seen as an attempt to influence the court, for both Mazuz and for the state prosecutor [Edna Arbel]," Mr Lapin said.
The petition with the court was filed on Sunday by two MPs - Eitan Cabel from the opposition Labour Party and Yossi Sarid, from Meretz-Yahad. They called on the court to overturn or reconsider Mr Mazuz's decision to close the file.
An investigation into the allegations was launched after Chief Prosecutor Edna Arbel recommended charges at the end of March.
Mr Sharon was alleged to have accepted bribes from Israeli businessman David Appel to use his influence when foreign minister in the 1990s over a property deal in Greece.
Mazuz's decision is to be considered by the Supreme Court
Mr Appel was alleged to have paid hundreds of thousands of dollars to Mr Sharon's son Gilad, whom he employed as a consultant in the scheme to develop the island of Patroklos. Gilad had no previous experience in the tourism industry.
Last week, the attorney general said that a "scrupulous point-by-point examination of the case" had failed to find "the slightest case of corruption... in the Greek Island affair".
Mr Mazuz also said that no charges would be pressed against the prime minister's son.