Police filed a case with Motijheel Police Station against unnamed accused. The government (BNP-led) forms a one-member judicial inquiry commission led by a High Court judge.
Detective Branch (DB) of police takes charge of investigation but fails to begin its work.
The CID takes over the investigation.
FBI agents arrive to probe the grenade attack.
Joj Mia was picked up from his Senbagh house in Noakhali and 20 more petty criminals form other parts of the cournty.Senior
CID officials make up farcical Joj Mia story.
Joj Mia and two others are forced to give confessional statements. Their real identities are later revealed by the media.
Yet the CID does not go for further investigation. Rather, it keeps wasting time by proceeding with the farcical investigation through 2005 and 2006.
The CID officials prepared a charge sheet on the basis of their so-called investigation.
JA new CID official is given the charge for fresh investigation into the carnage.
Senior CID officials make up farcical Joj Mia story.
The CID submits charges accusing 22, including Huji leader Mufti Hannan and former deputy minister of the BNP-led government Abdus Salam Pintu. The charge sheet hints at the involvement of some government and security high-ups in the plot.
Court frames charges against the 22 accused and begins trial in the following month.
Prosecution files a petition with the court for further investigation to identify the suppliers of grenades and sources of financing.
Court orders further investigation.
A new CID official is assigned for conducting further investigation.
The CID submits supplementary charge sheet accusing 30 more individuals, including politicians, senior officials of civil and military intelligence and law enforcement agencies.
Re-trial begins.
The court so far has recorded statements of 176 witnesses out of 491 in the case.
Recording of defence witness was going on.
The court completed recording statements of the prosecution and defence witnesses
Judge Shahed Nuruddin of the Speedy Trial Tribunal-1 starts hearing arguments
Prosecution told the court that BNP Senior Vice-Chairman Tarique Rahman had assured Huji leader Mufti Abdul Hannan and his accomplices of all administrative assistance in carrying out the grenade attack.
Defence begin their closing arguments
The state-appointed counsel for BNP Senior Vice Chairman Tarique Rahman started placing arguments for his fugitive client in the August 21 grenade attack case of 2004.
Closing arguments for the ex-CID officials completed.
The defence counsels for all 49 accused completed their closing arguments.
The prosecution told the tribunal that Tarique Rahman, acting chairman of BNP, was the chief architect of the grenade attack.
The prosecution completed its closing arguments and appealed to the court to award highest punishment to the offenders involved.
The court completed the trial after hearing the closing arguments for 119 days.