JERUSALEM — Thousands of documents, pamphlets and posters that provide written evidence of the Palestinian Authority's massive involvement in terrorism — battleground spoils — cannot explode or kill, but Israel considers them important benefits of its military operation in the West Bank.

The documents were captured in places such as President Yasser Arafat's headquarters in Ramallah and offices of the Palestinian Authority's Preventive Security Service, Arafat's Tanzim militia, Palestinian organizations throughout the West Bank and the Palestine Liberation Organization's Jerusalem headquarters of Orient House.

Israeli intelligence officers are just beginning to analyze the abundance of material, but the Israel Defense Forces rushed to publicize parts to bolster Israel's argument that Arafat has been directly involved in terrorist operations and stands at the head of an enormous terror entity.

Israeli officials were said to be shocked by the extent of the Palestinian Authority's complicity in terrorism.

"In the West Bank, the more we enter, the more we understand," an Israeli military official told the New York Times. "This is coming directly from Arafat personally."

Some of the documents were publicized by the IDF spokesman in Arabic, their original form. The Palestinians claim the documents are part of an elaborate Israeli fabrication operation, pitting their word against the IDF's.

The most important finding is that senior officers were actively involved in terrorism, providing logistical and financial assistance even to supposedly oppositionist elements, such as Hamas and Islamic Jihad.

Within the more mainstream Palestinian organizations, Arafat oversees two parallel and competing structures, each with its own funding, chain of command and capability for directing bombing attacks, the IDF told the Times. The cells that carry out the attacks are located in eight regions — Jenin, Tulkarm, Nablus, Bethlehem, Hebron, Ramallah, Kalkilya and Gaza.

Both structures report to Arafat and receive his financial backing.

"One of the most telling revelations of the documents is that the broadly accepted view that Arafat leaves the details to others is completely incorrect," said Michael Widlanski, a Hebrew University researcher who monitors the Palestinian press. "The documents repeatedly show that Arafat is in day-to-day control of the details of all his organizations, relaying the information for comment to the senior members of his military branches."

Arafat signed off on various operational invoices for the Tanzim, which has been responsible for a large number of terrorist attacks, including the bombing near Jerusalem's Mahane Yehuda market on April 12, which killed six.

The IDF exposed documents showing that Arafat personally signed checks for Tanzim activists involved in terrorism. This, according to the IDF, contradicts Arafat's usual denial that he has any control over the Tanzim.

Other documents show militants within Arafat's Fatah Party requesting money for bomb and weapons parts, itemizing the cost of each component and how many bombs per week the organization plans to use.

Moreover, evidence from documents and captured terrorists indicates, according to the IDF, the Palestinian Authority's West Bank intelligence chief, Tawfik Tirawi, helped recruit, arm and dispatch terrorists for attacks inside Israel.

When given lists of "most wanted" terrorists — whom the Palestinian Authority is obligated to arrest, under its agreements with Israel — Tirawi allegedly used the lists to warn the terrorists so they could evade arrest.

According to the IDF, Jamal Sawitat, the deputy head of the Preventive Security Service in Jenin, also constantly informed Islamic Jihad of the names of terrorists Israel was after.

Mortars and heavy machine guns, as well as yarmulkes and other disguises for suicide bombers, were found at the headquarters of Jibril Rajoub, the head of Preventive Security in the West Bank, who often is praised as a Palestinian moderate.

However, Israeli military officials were careful not to assert that Rajoub himself had directed specific attacks.

Prior to the recent escalation of the situation, Rajoub often was mentioned as a possible successor to Arafat. However, the fact that his security compound surrendered to Israeli soldiers — and that Rajoub did not join Arafat in his besieged headquarters in Ramallah — may have damaged his political prospects.

Some of the documents were found in the office of Fuad Shubaki, Arafat's financial aide. Shubaki allegedly masterminded the Palestinian attempt to smuggle arms from Iran on the weapons ship Karine that Israel seized in January.

Palestinians claimed Shubaki's was a rogue operation, and he was under investigation for his role. But he is currently believed to be holed up with Arafat in his headquarters, along with several of Arafat's closest aides and a host of wanted terrorists.

The army charged that members of Palestinian security services were directly involved in planning, and in some cases even perpetrating, attacks against Israelis.

Uzi Landau, Israel's minister of internal security, used the momentum to publish documents seized last year at Orient House. Landau convened a press conference last week, during which he exposed documents reinforcing the link between Arafat and the Tanzim.

The documents show that Faisal Husseini, the late PLO official in charge of Jerusalem, was updated by Tanzim leaders — such as Atef Abayyat, who was later killed by the IDF — on attacks against Jews, and was asked to intervene to get more money for Tanzim operations.

Police confiscated a letter sent by Husseini to his lawyer on Sept. 28, 2000, the day Ariel Sharon made his controversial visit to the Temple Mount, which the Palestinian Authority claims sparked riots that grew into the intifada.

Husseini's letter, however, mentions the "Al-Aksa Intifada" — before it had even begun. According to Landau, this proves that the intifada was pre-planned.

"These documents, many of them signed by Arafat, are more than a smoking gun," said Landau. "They are a smoking pen — a pen dripping blood held by Arafat."

Landau said the Palestinian leader "cannot deny these documents, that show he and his top aides planned and financed acts of terror."

But the Palestinians have done just that, challenging the documents' authenticity and hoping the world will not take too much notice — as, indeed, it hasn't.

"No one can say they are 100 percent authentic," Hassan Abdel Rahman, the Washington representative of the Palestinian Liberation Organization, told the Times. "And in the past, Israel was able to take many expressions out of context and distort their meaning."

The IDF has posted some of the documents on its Web site www.idf.il The documents and intelligence provided to the Bush administration is more comprehensive.

Other major findings conclude:

*The Palestinian Authority was involved in the production of arms, such as rocket-propelled grenades, which are specifically banned under the Oslo accords.

*The Palestinian Authority was directly involved in orchestrating anti-Israel incitement.

*The Tanzim was deeply involved in daily Palestinian life, serving very much like a government within a government.

Documents shed light on the scope of corruption within the organization, with large amounts of money directed to public figures for personal favors or bribery, without sufficient control over the allocation of funds. According to the documents, this trend has actually worsened since the reports of corruption in the Palestinian Authority caused a stir about five years ago.

In addition, there was no direct division between the Palestinian Authority and local organizations, with a lot of inefficient duplicity, resulting in waste of money and poor government.

Most of these documents were handed over to the United States before Secretary of State Colin Powell arrived in the region.

The drive was intended to halt American pressure on Israel to abandon its West Bank incursion and to convince Americans that Arafat was indeed deeply and actively involved in terrorism. However, it quickly was overshadowed by Powell's mission on the ground.