THREE private citizens yesterday appeared before the joint parliamentary committee as investigations in to the Westgate Mall terror attack formally began.
However, the three, whom the chairman of the Committee on Administration and National Security Asman Kamama identified as "experts", were grilled by MPs behind closed doors.
"Three people have volunteered to testify. We request those Kenyans who have information on what happened at Westgate to come forward," Kamama said.
He told journalists at Parliament Buildings the three had requested the committee to allow them present their evidence in a closed session.
A member of the committee told the Star that the three are among those who were at Westgate during the attack.
He said the committee will go on with its probe in spite of President Uhuru Kenyatta establishing a commission of inquiry to investigate the attack.
The committee's report is expected in a month.
"This committee is independent and has the capacity to prosecute this matter and report in a month. There will be no conflict with the executive inquiry," he said.
The joint committee of Administration and National Security and Defence and Foreign Relations will review the CCTV footage at Westgate and consider forensic evidence from the CID and other nations involved in the investigations.
Nairobi Senator Mike Sonko will appear before the committee on Thursday.
He has repeatedly said he warned the National Intelligence Service of the impending attack, but no action was taken.
NIS director general Michael Gichangi, Inspector General of Police David Kimaiyo, CID director Ndegwa Muhoro, Interior Secretary Joseph ole Lenku, department of immigration top officials and other experts on terrorism will appear before the committee next week.
Members of the public have until the end of this week to present their memoranda to the committee.