Interior PS Karanja Kibicho in a sworn affidavit has stated that corruption has grown by 240 per cent over the past five years.
The June 8 affidavit, included a number of corruption cases that resulsted in the loss of billions of shillings.
He cited flawed procurement processes as the main contributer to corruption cases since 2013.
The affidavit was in response to a decision by the Employment and Labour Relations court to set aside government's decision to suspend all heads of procurement.
Kibicho singled out the illegal purchase of land by the National Housing Corporation amounting to Sh400 million, purchase of a computerised conference management system at the Kenyatta International Conference Centre at a cost of 597 million, the purchase of two ferries by the Kenya Ferry Services at a cost of Sh1.9 billion and the purchase of firefighting equipment for Sh75 million among other scandals.
This is after President Uhuru Kenyatta ordered that all procurement officers to step aside and undergo fresh vetting before being allowed back into office.