There has been a 14% increase in the number of complaints received by the Garda Siochána Ombudsman Commission in the first nine months of the year, according to figures released by GSOC.
Overall 1,725 complaints were received between January and September of this year and GSOC said almost 1,700 cases have been closed so far this year, an increase of 11%.
It said three investigations were opened in the period in the public interest and at the request of the Minister for Justice.
The most common complaints relate to investigations followed by complaints about arrests and road policing.
GSOC said the most common allegations relate to abuse of authority and neglect of duty.
The Ombudsman has cited an increased level of public awareness of GSOC as the major reason behind the increase in complaints and queries.
The Ombudsman also noted that the time taken to receive information requested from gardaí in relation to investigations has improved significantly this year.
It said 81% of requests for documents from between January and September 2014 have been responded to within 30 days.