The two police officers, who were working with a civilian, had pinned down a Kenyan when they were ambushed by their colleagues.
After a brief interrogation, the American citizen's travel and personal documents were confiscated.
There has been a wave of uncertainty regarding HELB in recent weeks.
During the demonstrations, the protesters hoisted huge placards and twigs to vent their frustrations.
Schools have been urged to adhere to the directives fully and meet the set deadline.
Raila dropped out of the race after six rounds of voting leaving the Djibouti opponent to clinch the post.
Under former President Uhuru Kenyatta, the debt-to-GDP ratio grew to 71 per cent.
Several other valuables such as TV and phones were stolen during the robbery incident.
Koome was speaking in her capacity as the chairperson of the National Council of Administrative Justice (NCAJ).
President William Ruto faced online criticism, early February during his North Eastern tour for announcing the construction of the Road