These tests are capable of a 90% detection rate or more.
But the Government remains deeply concerned about low police moral and the fact that detection rates for all crime is falling.
Many women will be happy to take a chance on anxiety and hassle in exchange for a higher detection rate.
The overall detection rate of one time screening is about 2.5%.
The detector was able to analyze 1200 bags per hour for a detection rate of 99.8%.
Wiltshire Police's detection rate is 6% higher than average, at 28%.
For example, the crime rate is lower than in Germany, the detection rate higher.
The dragging out of these cases, the long waiting periods, poor detection rates and the like are all a matter for national bodies.
The detection rate for this type of crime is very low.
Although such a detection rate sounds far from perfect, it can be effective if the test is given on a regular schedule.