State officials have repeatedly purged police ranks only to see the corrupt reinstated by court order.
As dusk neared, after several hours of forays, thousands of protesters massed on the 26th of July Bridge and surged through the police ranks toward Tahrir.
But there is already a campaign to raise awareness within police ranks about the value of protective vests, with officers on the beat being invited to join the debate about safety.
And it will have to persuade the armed insurgency to police its own ranks to avoid sectarian fights.
Los Angeles police detective Harry Bosch ranks with Sherlock Holmes as a complex, memorable character.
Critics may dismiss that answer as away-day workshop speak - but supporters of the shift to PCCs say elected commissioners could prevent police forces from closing ranks when they need to admit to their mistakes.
Rotherham-born Sir Norman started his career as a 16-year-old cadet with South Yorkshire Police and rose through the ranks.
The government has repeatedly blamed the violence on "terrorists" it says infiltrated the red-shirt protester ranks, attacking police and soldiers.
The ranks of Los Angeles police are much more diverse than they were at the time of King's beating.
Gary Roberts, 49, is the first Isle of Man police officer to rise through the ranks and take up the position.
Despite being one of just a few women in the Rio de Janeiro military police, she has risen through the ranks, commanding more than 100 male officers.
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Ranks of protesters clashing with police, tear gas flying, and the Parliament building somberly witnessing the whole thing revealed that the crisis is very much alive and well.
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The ranks of the Afghan army and police force are slowly filling with recruits.
Flying pickets of mineworkers sent to stop deliveries leaving from mines were met by ranks of baton-wielding riot police.
Police officers - though it is unclear which ranks will be affected - will also have to disclose contact with the media in line with Lord Justice Leveson's recommendations.
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The plans include doubling the army's ranks to 135, 000 and the police force to 80, 000 by 2011, the officials said.
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Currently, police officers are forced to work their way through the ranks to achieve top positions, but that might be about to change.
Metropolitan Police commissioner Sir Bernard Hogan-Howe said 10% of senior ranks could come from outside.
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Firefighters and similar public servants might be in great need, so a push to swell the ranks of public servants specifically, firefighters, police, EMTs, and even childcare is necessary.
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Banks, 50, whose father was also a police officer, joined the nation's largest police department in July 1986 in Brooklyn and worked his way up the ranks.
As police sealed off roads in the area, recruiters lined up the young men in ranks, peppering them with questions before shepherding small groups into a building to register and undergo physical and psychometric tests.
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It now has 1.1 police officers per 1, 000 residents, less than half the national average for cities its size, and ranks eighth among the Most Dangerous U.S. Cities.
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In 1999 Mr Dizaei, who has a PhD in law, accused the police service of "ethnic cleansing" of black and Asian candidates and said testing procedures used to pick senior ranks were "culturally biased".
IRA. But in the context of wider reforms to the police force, Catholics may find it easier to apply and easier to fit in, once they are in the ranks.
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