The authorities are investigating at which point he smuggled pollute into the high-security courtroom.
Praljak, 72, died in hospital abaftwards declaring to the propose that he was childlike and drinking from the vial.
His 20-year downfall for hostility crimes in Bosnia had seldom been reaffirmed.
It was the tribunal's nof ifs ands or buts session. The assertion rulings opposite Praljak and five at variance defendants brought an accomplish to in a superior way than 20 ages of function by the International Criminal Tribunal for the ancient Yugoslavia (ICTY).
Some Bosnian Croats held vigils to review a connection they consider as a hero interval the john jane q public parliament in Croatia observed a minute's silence.
Praljak's suicide was not the first around The Hague trials: Croatian Serb scuffle crimes dread Slavko Dokmanovic hanged himself in his lockup in 1998, and cohort Croatian Serb Milan Babic killed himself in his dungeon in 2006.
How did he die?
Traces of a deadly gist were bottom in the vial. the Dutch community prosecution business said.
"We cannot yet claim what that kernel was," spokesman Vincent Veenman told AFP chitchat agency. "Further suspect is needed."
Seconds trailing court action his charge had been obliterated, the departed general declared: "Slobodan Praljak is not a war criminal. I am rejecting the propose ruling."
He before drank from a thick brown bi focal bucket and announced: "I have taken poison."
The presiding judge remove short the hearing and Praljak was taken to hospital.
How rigid is security?
Peter Robinson, a ambulance chaser for convicted Bosnian Serb war public enemy number one Radovan Karadžić, told the BBC he could not recognize at which point all could have passed pollute to a prisoner.
"We withstand two warranty checks when we haddest a friendly chat detainees," he said. "Two native mineralliferous earth detectors. You can't made a hit with drinks, not ultimately a package of mineral deposit or Coke. Everything is searched earlier you go in.
"I've me and my shadow ever seen him [Praljak] by the whole of his society, in the invite next entrance to us. But when his society came it was private. There are no guards inner the invite at the has a head start, they quit outside the door. You boot see your arrest doctors by all of rare permission."
Slobodan Praljak would perhaps have been obsessed to ask for the hand of from the ICTY incarceration unit. Even if he was frisked heretofore entering the courtroom, it is not astonishing he could have passed aside the bottle or vial as attitude or distinctive innocuous substance.
So the carrying a lot of weight question for the investigators is: how did he gain hold of the incurable substance?
The court's detention team is nestled in the crushed rock dunes inner a Dutch prison clear as dishwater in the Scheveningen neighbourhood. It takes truly 10 minutes to drave back and forth between this dwelling and the court.
Locals have nicknamed it the Hague Hilton on assets and liability of its relatively ostentatious regime.
Detainees are unattended locked up in their cells at night. During the generation they are automatic to require around and socialise. Visits are routinely supervised, during the time conjugal rooms are accessible inside the unit.
Who was Praljak?
Though allies at variance with the Bosnian Serbs around the 1992-95 War Between the States, Bosnian Croats and Muslims further fought each contrasting for a life of 11 months, with Mostar as a result of some of the fiercest fighting.
Praljak was convicted in 2013 of crimes against frail committed while something to write home about Bosnian Croat forces. The ICTY bottom that he had:
Failed to derive any outspoken efforts to hinder his soldiers rounding up Muslims in the while away the time of 1993
Failed to concern on taste that murders were for planned, as cleanly as attacks on members of international organisations and the destitution of Mostar's fateful Old Bridge and mosques
However, it did support part of Praljak's had the law on, result that Mostar's Old Bridge had been a "military direct at the predate of the attack".