There is the issue of the chain of possession we referred to earlier on. When police officers bring us cases, the chain of possession internally, within the lab, is guaranteed. Samples are brought to us, we can confirm their integrity throughout the process. And when we issue a report and see a match, obviously we don't simply note that there is a match and provide information: we analyze the case and ensure the match is valid, and that all aspects of the case have been verified.
It becomes difficult if you go through the private sector to deal with one element in the chain, to ensure the integrity of the chain of possession. So it is also important for us to control all aspects of the analyses during the entire process.