Oswago was picked up on Tuesday
afternoon by Ethics and Anti Corruption Commission detectives who have been pursuing the matter since March.
Officials at Integrity Centre confirmed that Oswago was being held alongside deputy commissioner Wilson Shollei, Willy Kamanga and a Mr Karisa.
The four were picked up in Naivasha where they were attending a workshop and driven to
the EACC headquarters in NairobI.
They are all expected to appear in court on Wednesday to face relevant charges.
