Momic was arrested near Grenoble on a European arrest warrant issued by Serbian authorities, which charge him with crimes against humanity and involvement in the killing of around 8,000 Bosniak men and boys in the eastern Bosnian town of Srebrenica in 1995. He worked for a construction company and hid in France under the false identity of Guy Monier.

"Croatia has collected the necessary documentation and the justice minister should sign the request tomorrow," Justice Ministry spokesperson Vesna Dovranic said on Tuesday.

Dovranic said that the ministry would send the request even though the French authorities had not yet forward a notification about the arrest of the 47-year-old man who used to be a member of the Scorpions, who, under the command of the Serbian Ministry of the Interior, took part in the conflicts in Croatia (1991-1995), Bosnia (1992-1995) and Kosovo (1998-1999).

Croatian authorities have issued a warrant for Momic's arrest on charges of war crimes in eastern Slavonia, officials at the Vukovar County Court confirmed.

Momic is in extradition custody and, under international conventions, extradition custody can last up to 40 days, during which time countries looking for the fugitive can request his extradition.

However, the Croatian Helsinki Human Rights Committee (HHO) last Friday warned that it had been informed by the French branch of the Helsinki Human Rights Committee that Momic could be released in six days.