More than 200 complaints have been made against police officers for comments or photos posted on Facebook in the last four years.
At least two officers were sacked, seven quit and more than 150 faced other disciplinary action, figures from 41 of the 43 forces showed.
The details were revealed following a request under the Freedom of Information Act by the Press Association and a review by Her Majesty’s Inspectorate of Constabulary.
Here is a selection of some of the disciplinary actions faced by officers for their use of Facebook:
:: Two officers were dismissed without notice.
In 2011, a 35-year-old Metropolitan Police constable, who was based in Islington, north London, was sacked after referring to another officer as a “grass” and a “liar”.
The Independent Police Complaints Commission (IPCC) said in June that the officer, who was based in Islington, north London, used deeply offensive language after being involved in a brief, casual relationship with a colleague which ended acrimoniously in April last year.
In 2009, an officer from the Hampshire force was sacked after posting a racist comment.
:: Seven officers resigned prior to being disciplined over complaints.
In 2010, two special constables from Dorset resigned prior to disciplinary hearings over the “misuse” of Facebook.
One officer from South Yorkshire quit in September 2010 after being accused of improperly disclosing information and another from Cheshire resigned in October 2010 after being accused of harassing a former partner on Facebook.
Another officer, from the South Yorkshire force, received a final written warning in 2010 linked to another allegation regarding “orders and instructions”.