The link you followed will bring you to this page:

http://www.google.it/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&ved=0CCwQFjAB&url=http%3A%2F%2Fec.europa.eu%2Fenterprise%2Fsectors%2Fautomotive%2Ffiles%2Fprojects%2Freport_anti_tampering_devices_en.pdf&ei=ryVrULPcNMnJtAaTiIDABQ&usg=AFQjCNHdvIpZZgLRalHA3dyhRzrIhRZ7Pg&sig2=-uENE5mwUIj3h0uX-Uq2xA