PHNOM PENH - Cambodia deployed 1,570 police at high-school exam test sites across the country on Monday.
The move was part of a government crackdown on bribery and corruption in the education system.
Testing sites were cordoned off in the capital Phnom Penh.
Students were patted down by officials to check for cheat sheets and mobile devices.
The relatives of students taking exams waited outside.
"We are doing all of this to guarantee transparency and quality in the education system," Ros Salin, a Ministry of Education spokesperson, told Reuters