Blood Test

A blood test is a very reliable way of detecting drug use. It is not possible to manipulate your blood. Also by using blood tests it is quite certain that drugs have been used recently and/or you can determine how long ago and in which quantities consume has taken place.

Especially Marihuana can be detected in the blood for quite some time, up to weeks if THC has been consumed intensly.

Normally blood tests are common in combination with traffic violations because you can prove if the consumer has been intoxicated recently i.e. while driving a vehicle.