CAIRO — Egypt’s transitional military government announced the early retirement of more than 600 senior police officers on Wednesday. It was an effort to mollify thousands of protesters at a six-day-old protest in Cairo’s Tahrir Square who have been demanding swifter justice for those complicit in wrongdoing under President Hosni Mubarak, who was ousted in February.

The Interior Ministry said 18 police generals and 9 other senior officers were forced into early retirement because they were accused of killing protesters during the 18-day uprising. For the same reason, 54 lower-ranking officers were shifted to jobs where they would no longer interact with civilians, officials said....