Renson Mulele Ingonga was on Monday sworn in as Director of Public Prosecutions.
The event was presided over by President William Ruto at State House, Nairobi.
Mulele takes over from Noordin Haji who left the ODPP after he was picked by Ruto as the new National Intelligence Service Director General.
The President picked Mulele from a list of 15 individuals interviewed for the position by the Public Service Commission.
He is set to serve on an eight-year term.
Mulele's appointment came after MPs unanimously approved his nomination to the position.
During his vetting, Mulele revealed he was worth Sh300 million, being the value of his residential house and family land.
Ingonga is an advocate of the High Court and has been a senior Deputy Director of Public Prosecution in charge of the North Eastern region before his nomination by the President.
He holds a master of Law from the University of Nairobi and a Postgraduate Diploma in law from the Kenya School of Law.
He also has a Law degree from Moi University.