Detectives handling investigations into Arror and Kimwarer dams in Elgeyo Marakwet County have revealed the the probe into the stalled dams was triggered by a letter from Italy to President Kenyatta, saying the Italian company had difficulties in continuing with the project.
Rotich was also questioned on the signing off of the projects with a company that is now grappling with financial constraints.
He was asked to explain how and why payments were made without project designs, bill of quantity and due diligence.
The crime busters are looking into the alleged sinking of more than Sh20 billion in the two phantom dam projects in Elgeyo-Marakwet County.
This was the second straight day that Mr Rotich has been questioned by the George Kinoti-led directorate.
“The reason why it took long is because we are dealing with international contracts which take time to understand. It took a while for investigators to understand how international contracts work,” Mr Kigen said as he drove away.
Last evening, highly placed sources from the investigating team told the Star that after the third round of questioning, police found reasons to press charges against the CS.
“We will be recommending his prosecution for failure to safeguard public money “said a senior officer who spoke on condition of anonymity.
The Star established yesterday, the investigators had put emphasis on the Sh21 billion that Treasury released for the construction of the two dams.
Yesterday, the CS was grilled on a wide range of issues including the possibility that the companies awarded the cash would collapse with public funds.
“We sought to know the safety of the public funds now that the company that was to do the job is facing financial problems,” the investigator said
The contractors had told the investigators they used the Itare Dam project and another dam in South Africa as their due diligence check to start Arror and Kimwarer.
A team was sent to South Africa last Thursday to establish if there was such a dam and came back on Saturday. It is not clear what they found out.
Those aware of the probe said the questions were on more than 200 pages and ranged from why payments were made without proper paper work and safeguards to concerns about high premiums for loans.