Prosecutors requested that Rovisan, a member of the embassy staff, be remanded in custody and sentenced to an unconditional term of imprisonment.
Zagreb Municipal Prosecutor Vesna Abramovic said that Rovisan was charged on the basis of the results of a thorough criminal investigation conducted by the Zagreb police.
The defendant's lawyer Ilija Ivanic told Hina he had asked judges at the Zagreb Municipal Court not to remand his client in custody but to send him to serve a 16-month prison sentence he had been previously given for robbery committed in a jeweller's shop in Sisak in 1998.
Ivanic said he would file an appeal should the court issue a detention order for Rovisan.
The crime of endangering human life and property carries a prison sentence of not less than six months and not more than five years. If found guilty of illegal possession of explosive substances, Rovisan faces a fine or a prison term not exceeding three years.
Rovisan suffered minor injuries to the leg when he accidentally detonated a hand grenade in the embassy's post room on 19 September. In his confession to the police the next day, he said he had been carrying the hand grenade for days in fear of two indicted men who had beaten him up four years ago.