Instances of abuse of power, especially in the police ranks, as well as corruption related to environmental damage, bid-fixing and state procurement projects are on the increase and becoming big concerns, graft busters announced at a seminar Wednesday.

National Anti-Corruption Commission member, Vicha Mahakhun, said 2,933 complaints filed with the agency were mostly against police officers accusing them of malfeasance and abuse of power.

More than 2,000 cases filed with the agency were complaints against or related to local administration authorities, 542 related to irregularities and dozens about unusual wealth.

There are 132 complaints filed against administrators in Bangkok.