involved rich or powerful defendants. All but one involve infractions by mid- or low-level administrators such as mayors, school directors, policemen, clerks, and registrars. The NACC has 2,192 "ongoing" cases. Some date back to 1999, the year of the agency's founding. One such case involves an allegation of fraud against a schoolteacher in Chiang Mai. She learned of the allegation in February 2017. The teacher, Jiamjit Boonyarak, is accused of embezzling students' dorm fees and stealing from other projects in 1998. An investigation was not launched until July 2011. On 9 February 2017, the NACC formally informed Jiamjit of the allegations for the first time so she could prepare her defense. One reason for the NACC's poor conviction rate may be that NACC employees are harassed and threatened in the performance of their duties, necessitating the use of bullet-proof vehicles by NACC staff. Many of the NACC's efforts are aimed at public awareness activities such as public service videos. The Bangkok Post has pointed out that the NACC is responsible for "...keep[ing] the Election Commission of Thailand (EC) in check...." It claims that the EC is thought by many to be politically biased, but that the NACC itself lacks credibility and has made no progress in its handling of public complaints about the EC's seeming political favouritism. Notable cases Not all cases are equal in the eyes of the NACC, according to Srisuwan Janya, a government transparency activist, and Somchai Preechasilpakul, a law lecturer at Chiang Mai University. They maintain that the NACC shows selective enthusiasm by expediting cases against the political opposition while ignoring those brought against those in power. GT200 bomb detector , fourteen years after the Thai military and police spent millions on fraudulent GT200 "bomb detectors", the NACC investigation is still "on-going". Surasak Keereevichien, an NACC member, stated in August 2018 that it is difficult for the anti-graft agency to ascertain whether there was any wrongdoing committed in the 1.13 billion baht purchase of fake "remote substance detectors". He said the NACC would come up with a decision on the matter "at an appropriate time. The NACC will not allow the statute of limitations to expire...." Surasak claimed that officials bought the devices despite their exorbitant price tag because they thought they would work. "Sometimes, it is not about the value of devices. It's more about belief, just like when you buy Buddha amulets," Surasak said.