During the 24-day hearing, a large portion of the questions were about the response to the Dec 8 Little India riot.
Deputy Assistant Commissioner (DAC) Lu Yeow Lim, DAC David Scott Arul, Assistant Superintendent (ASP) Jonathan Tang, Lieutenant (Lt) Tiffany Neo, Sergeant (Sgt) Fadli Shaifuddin Mohamed Sani
KEY POINT: WHY HESITATE?
The Committee of Inquiry (COI) quizzed DAC Lu on the way police responded.
Much was made of how he had remained with a group of eight officers at the junction of Hampshire Road and Race Course Road for 30 minutes.
And rather than charge at rioters when they had shields, DAC Lu and his men held the ground, trying to contain the riot until the Special Operations Command (SOC) troopers arrived.
Said committee member and former police commissioner Tee Tua Ba: "For half an hour, you were there holding the line. You have somehow made it worse by not taking any action."
But DAC Lu defended himself, saying that his objective was to contain the riot by not letting it escalate.
Police Commissioner Ng Joo Hee also stood by his men when he testified before the committee on Tuesday.
He emphasised that on the night of the riot, police officers had shown restraint rather than attacking and firing at the crowd, which might have made the situation worse.
Mr Ng also said that officers had been trained not to fire a warning shot unless it would put an end to violence, or it would signal to the crowd that the police were about to use lethal force.