context: Another of the Egyptian groups which employed violence in their struggle for Islamic order was al-Gama'a al-Islamiyya (Islamic Group). Victims of their campaign against the Egyptian state in the 1990s included the head of the counter-terrorism police (Major General Raouf Khayrat), a parliamentary speaker (Rifaat al-Mahgoub), dozens of European tourists and Egyptian bystanders, and over 100 Egyptian police. Ultimately the campaign to overthrow the government was unsuccessful, and the major jihadi group, Jamaa Islamiya (or al-Gama'a al-Islamiyya), renounced violence in 2003. Other lesser known groups include the Islamic Liberation Party, Salvation from Hell and Takfir wal-Hijra, and these groups have variously been involved in activities such as attempted assassinations of political figures, arson of video shops and attempted takeovers of government buildings.
question: Over 300 Egyptian police were victims of what group's campaign of terror?