For highly qualified expatriates, job opportunities generally offered high salaries and excellent benefits, including free housing, extended vacation time, airline tickets to return home several times per year, relocation allowances and - unless it was restricted by the expatriate's own country - tax-free income. Most of the North American multinationals in Saudi Arabia preferred to fill their senior-level positions with North American graduates who had relevant work experience. However, the number of North American expatriates had been shrinking. One reason was that living in an Islamic monarchy required Use outside these parameters is a copyrig significant lifestyle adjustments for Westerners. The King governed by Islamic law (Shari'ah), with the Quran (holy book of the Muslims) and the Sunna, which contained the sayings or Hadith of the Prophet Analyzing Business Cases at College of the North Atlantic Mohammad, as the country's constitution. Therefore, the possession of items such as pork products, alcohol, drugs and pornography were considered crimes in Saudi Arabia. Other crimes included criticizing Islam or the Royal Family and socializing with a member of the opposite sex to whom one was not closely related." Punishment for certain crimes could be very severe, including detention, floggings, amputations or death, whereby the Shari'ah judges had significant latitude in their decisions. Furthermore, the U.S. Department of State website extensively warned of the possibility of anti-Western attacks in Saudi Arabia.' Since the 1990s, the Saudi government had started the process of "Saudiization," the practice of forcing businesses to hire more Saudi nationals to reduce unemployment among Saudi nationals."