Kenya Bureau of Standards (Kebs) Managing Director Mr Bernard Njiraini was arrested Thursday morning as investigations into allegations of bribery at the State corporation continued.
He was arrested by officers of the Ethics and Anti-Corruption Commission (EACC) and taken to the Integrity Centre for questioning.
It is not clear whether he will be produced in court on Friday morning.
Mr Njiraini is also embroiled in an appointment row in which he is alleged to have been picked even when he did not make the top three shortlist.