Twelve police officers are to be disciplined as a result of a BBC documentary which revealed racism at a police training college in Cheshire.
The documentary showed one officer wearing a Ku Klux Klan mask
The Independent Police Complaints Commission (IPPC) said none would be sacked, but four officers who train recruits would get written warnings.
Seven constables and a sergeant would receive formal advice from a senior officer, it added.
Ten other officers resigned after the 2003 screening of The Secret Policeman.
The IPPC called for a review of recruitment and the development of methods to identify personality traits which are unacceptable in police officers.
Quicker disciplinary procedures should be set up in cases of gross misconduct so officers could be instantly dismissed when there was "compelling evidence" against them, it said.
Methods should be developed to identify personality traits that were "unacceptable" in police officers.
The IPCC also recommended that the feasibility of having an independent person on every recruiting panel for trainers should also be examined.
It called on Centrex, the Central Police Training and Development Authority, to carry out a national review of race and diversity training.
A review of the recommendations will be held in September.
IPCC commissioner Nicola Williams said: "It is vital that the police service can permanently improve recruit training and ensure that each and every police officer supports the need to treat everybody fairly, regardless of their race, religion or colour."
Centrex, welcoming the recommendations, said it had been working with the Home Office, the Association of Chief Police Officers, and the Association of Police Authorities on the police race and diversity learning and development programme since November 2004.
180 hours of video and audio tape
The programme is aimed at improving police performance in race and diversity.
Eleven of the 12 officers to be disciplined are from Greater Manchester Police, where reporter Mark Daly was a trainee officer and secretly filmed recruits at the Bruche National Training Centre in Warrington, Cheshire.
The twelfth officer, one of the four trainers from Bruche, is from Lancashire Constabulary.
Greater Manchester Police Deputy Chief Constable Alan Green said "decisive action" was taken against several recruits, following the screening of the documentary, which led to their resignations.
Other officers were disciplined after an investigation supervised by the IPCC also highlighted procedural issues such as the need for improving recruitment and selection methods.
"These issues have been encompassed and addressed in our far-reaching Operation Respect Programme, which seeks to promote fairness and equality throughout GMP and with the communities we police," Deputy Chief Constable Green said.
"We will continue to work in an open way to rebuild greater confidence in the way we police."
The documentary prompted the Commission for Racial Equality (CRE) to carry out an investigation into the recruitment, training and monitoring of police officers' conduct and the management of their behaviour.
Its findings are due to be published next week.