Complaints against the police rose by 3% in Cambridgeshire in 2009-10, the lowest increase in the east of England, a watchdog has revealed.
The Independent Police Complaints Commission (IPCC) said 393 people had complained. Nationally, complaints rose by 8%.
Cambridgeshire saw a decrease from 671 to 634 in the number of allegations in those complaints.
Incivility allegations saw the largest drop, from 183 to 124.
Neglect of duty, which together with incivility is classed as "rude and late", rose from 173 to 179.
The third category of assault decreased from 81 to 78.
IPCC commissioner Rachel Cerfontyne said: "Prior to the introduction of the IPCC in 2004, the number of people complaining was falling and later research showed only 10% of people who felt like complaining actually did.
"I believe improved confidence in and access to the complaints system has encouraged those who previously were not inclined to complain that making a complaint is worthwhile."
Nationally the most common aspect of policing that people complained about remained the same as in previous years, with nearly half of all allegations about incivility or neglecting duties.