Measurements are only as good as the device & process used to collect them. After reading the stuff that Arnie Baker put together for the Landis hearing this past spring, as well as wading through all the transcript, I wouldn't trust the French lab at Chateney-Malabry with a yardstick, much less any sort of electronic instrumentation.
It's interesting to note that other labs (for example, Australia and Belgium) running the same samples tested at the French lab come up negative while France says they're "hot."
Tom