This tribunal investigated the matters referred to it and responded after more than 10 years.
The tribunal investigates allegations and delivers recommendations to the government.
Mr. Martin said that the tribunal would investigate the graves.
The tribunal has been investigating him for years.
A tribunal investigating corruption said a former foreign minister received bribes totaling more than $200,000 during his time in office.
From 1993 to 1997 he was a judge on the international tribunals investigating war crimes in Yugoslavia and Rwanda.
A tribunal of inquiry comprising three judges investigated his allegations and found them to be untrue.
Some critics say the tribunal must investigate or lose credibility with Rwanda's Hutu.
The tribunal is now investigating atrocities by paramilitary groups controlled directly by the secret police in Belgrade.
The tribunal does not investigate wartime deaths caused by NATO.