In London, the Police have launched a serious and detailed investigation into the violent clashes yesterday after thousands of students took to the streets. They were protesting against Parliament approving the trippling of University tuition fee. Government buildings were damaged and shop windows smashed and more than 50 people were injured. Prime Minister David Cameron has condemned the violence. The investigation will look at Royal security after an attack on a car carrying the heir to the British throne Prince Charles and his wife Camilla.