Impaired driving is something that is very harmful to people who are on the roads. Not all impaired driving has to do with alcohol. Some cases have to do with a driver who is impaired because of drug usage. This poses a unique problem for law enforcement officers, as well as for defendants because it isn’t as easy to determine the level of drugs in a person’s system as it is to determine the level of alcohol in a person’s system.

When it comes to the blood in a person’s system, measuring the amount of alcohol in the blood is fairly easy to measure with pretty accurate results. This is because the body burns alcohol at a fast rate that is seemingly consistent from one person to the next.

people who are suspected of drunk driving can do a field sobriety test, a breath test, or another chemical test to determine if they are impaired. If they are found to be impaired, they can face criminal charges.

When it comes to drugs, there isn’t really an accurate test that can gauge a person’s level of impairment because some drug components can remain in a person’s system much longer than the effects of impairment last. That makes it difficult to get an accurate account of how impaired a driver was at the time they were stopped for impaired driving.

Marijuana is a good example here. THC, the psychoactive component of marijuana, can remain in a person’s blood and urine for up to four or five weeks. The impairment from the drug doesn’t last anywhere to close to that long.

If you have been charged with drugged driving, you need to be sure that you understand the case that the prosecution is going to use against you. The terms of the prosecution’s case can give you the basis for your defense.

Source: FindLaw, “Driving Under the Influence of Drugs,” accessed Sep. 16, 2016