Munjes is indicted for torture and intimidation of three Croatian civilians in Perusic in September 1991 when the area was under Serb rebel control.
In 1995, Munjes was tried in his absence and sentenced to nine years in prison. In March 2010 he was arrested in the Montenegrin coastal city of Bar and later extradited to Croatia which has organised his retrial.
The next hearing was set for Tuesday.