Prosecutors want to put Italian premier Silvio Berlusconi on trial over accusations he paid for sex with a 17-year-old girl and then used his influence to intervene on her behalf.
Prosecutor Edmondo Bruti Liberati said he would lodge the request with a Milan court when he would decide whether to seek trial on both accusations simultaneously.
Mr Berlusconi is accused of paying for sex with a Moroccan girl, then phoning police on her behalf when she was detained for an alleged theft.
He has denied the accusations and accused the prosecutors of seeking to drive him from office.
The woman, who is now 18, has said they never had sex, though she says he gave her £5,800.