Four of them are from Mymensingh while the rest are from Jessore and Narail.
The charges include genocide, abduction, torture, loot, arson, rape and murder.
M Sanaul Huq, a senior official of the ICT’s investigation agency, presented the summary of the two reports at a media briefing in Dhaka on Thursday.
He said both the reports would be submitted to the prosecution.
Investigation Officer Monwara Begum has prepared one of the reports on four war crimes suspects from Mymensingh.
Aminuzzaman Faruq, Khawaza Doctor and AKM Akram Hossain are currently behind bars while the fourth is a fugitive.
The 54-page report narrates involvement of four in abduction of six people, forced detention, torture, murder, loot and arson.
The report comes as a result of the investigation which started in 2015 and ended in February this year. Depositions of 60 people were recorded in the meantime; 34 of them were made witnesses.
Investigation officer Abdullah Al Mamun has prepared the other report on 12 suspects from Jessore and Narail.
Five of them -- Omar Molla, Omar Ali, Badruddoza, Daud Sheikh and Golzar Hossain Khan – are in detention.
Golzar Hossain Khan has been directly involved with the ruling Awami League while the rest were active in the political practices of BNP, Jamaat-e-Islami and Bangladesh Muslim League, said Sanaul.
The other report, which has 434 pages, narrates seven crimes allegedly committed by 12 suspects. The investigation has confirmed 76 people who will testify against them.
“Police are yet to arrest any of the fugitives.
However, there is a special committee of the ICT to deal with arrests of war criminals,” Sanaul said.
“The tribunal will take action if police provide misleading information regarding the fugitives. The investigation agency lacks such mandate.”