Again via Radio Prague:
One of the steps taken by the Czech Republic to come to terms with its communist past were so-called 'lustrace', or screening laws. They were meant to prevent former communist secret agents and other people associated with the former regime from taking government and senior civil service posts. But it appears that some former secret police, or StB, agents have managed to slip through the net. It has just emerged there are far more former agents in the police than previously believed - 800 rather than a few dozen.
Read the whole of Dita Asiedu's report here.