Prosecutors have already relayed more than 700-pages of wiretap conversations describing raucous behavior that would draw censure at most fraternity houses: sex-fueled parties attended by scantily clad women, sometimes dressed as nurses or police officers.

The indictment alleges Berlusconi paid for sex with the Moroccan girl, nicknamed Ruby, then used his influence to get her out of police custody when she was detained in connection with an unrelated theft of $4,103 (euro3,000). Prosecutors say Berlusconi called police the night of May 27-28, 2010, because he feared his relationship with the teen would be revealed.

So far Italians have been forgiving, with Berlusconi's popularity damaged by the scandal but not demolished. However, having such details aired in a courtroom and not just on newspaper pages could change the tide against Berlusconi, experts warn.

``If you start to hear something (that) is really embarrassing and difficult to handle, I think that could hurt the image of Berlusconi and his position as prime minister,'' said Franco Pavoncello, a political analyst at John Cabot University in Rome.

Judge Cristina Di Censo handed down the indictment Tuesday with a terse statement that showed she believes there is sufficient evidence to subject Berlusconi to an immediate trial, as prosecutors requested. The speeded-up procedure, which is ordered in cases of overwhelming evidence, skips a preliminary hearing that alone can take nearly a year.

The child prostitution charge carries a possible prison term of six months to three years. However, the abuse of influence charge is even more dangerous: It carries a sentence of four to 12 years, and if Berlusconi is sentenced to more than five, he would be barred from ever again holding public office.

Both Berlusconi and the now 18-year-old Moroccan nightclub dancer deny having had sex together. Ruby, in a TV interview on a Mediaset channel, said Berlusconi gave her $9,000 (euro7,000) the evening they met, and later jewelry.

The trial will follow the resumption of three other criminal cases involving Berlusconi's business dealings, creating both a legal morass for the premier, and a judicial juggling act as panels seek to schedule hearings amid Berlusconi's commitments as head of government.

At the same time, a weakened Berlusconi will face the challenge of keeping unruly coalition partners happy, while attempting to repair the image of his country _ badly damaged by his own scandal _ on the international stage.

The trial itself will take months, if not years, given the difficulty of scheduling court appearances. While defendants are not required to attend trials in Italy, Berlusconi's defense has often invoked his willingness to do so. Still, he has rarely showed up in court.