Lincolnshire Police had the third highest number of allegations of misconduct across all forces in England and Wales last year.
Newly released Independent Police Complaints Commission (IPCC) statistics showed an average of 316 allegations were made per 1,000 workers.
Figures showed North Yorkshire and Cleveland had averages of 378 and 318. The national average was 213.
Lincolnshire Police said most complaints were found to be unproven.
A spokesman said: “We accept that there has been a 14% increase in overall complaints during the year against the national picture of a reduction of 9%, but this must be read in the context that 87% of the complaints investigated were found to be to unproven following investigation.
“This is the third highest percentage of ‘Not Upheld’ complaints in England and Wales.
“We also have one of the lowest levels of appeals against the outcome of investigations in England and Wales.”
It also said it was satisfied its complaint recording procedures were ethical and met the required standard of the IPCC.
The IPCC report for 2011/2012 found the total number of complaints recorded by police forces in England and Wales fell for the second consecutive year.
News published on: http://www.bbc.co.uk/news/uk-england-lincolnshire-20047236