Bosnian Serb Aleksander Cvetkovic accused of taking part in Srebrenica massacre in 1995, where 8,000 Muslim men and boys were killed by Serb troops.
Israel can be extradited back to his homeland to stand trial for war crimes.
Aleksander Cvetkovic, who is married to an Israeli woman and holds Israeli citizenship, entered the court Monday in handcuffs.
The 43-year-old was arrested in January following a Bosnian extradition request accusing him of being part of an eight-man firing squad that executed between 1,000 and 1,200 Bosnian Muslims at the Branjevo Farm in July 1995.
The killings were part of what became known as the Srebrenica massacre, where Serb troops killed more than 8,000 Muslim men and boys.
Cvetkovic's lawyer, Nick Kaufman, said he is considering an appeal. The Justice Ministry says without an appeal, Cvetkovic will be extradited in 60 days.