Police are accelerating DNA tests and forensic checks after gunmen ambushed a police officer outside a school in Pattani, killing his wife, a teacher.
Pol Maj Gen Jruykiat Pankaeo, deputy commissioner of the Central Investigation Bureau, indicated investigators believed Pol Snr Sgt Maj Adul Hayeesulong, 38, of Yaring police station, had been monitored for some time before the attack in Yarang district on Monday.