Driving Under the Influence of Drugs in Orange County

The Orange County District Attorney is aggressively cracking down on cases involving driving under the influence of drugs (DUID).

There's a lot of bad information out there regarding DUID cases in California.  Some of my clients are surprised to learn that they can be arrested for driving under the influence of any drug or combination of drugs that affect their ability to drive a car safely.  That includes legal drugs, illegal drugs, prescription drugs, medical marijuana, chemotherapy drugs, sleep aids, even NyQuil.

Everyone knows that the "magic number" with alcohol is 0.08%.  If you drive a car while your blood alcohol concentration is 0.08% or greater, you are guilty of DUI.  With other drugs, though, there is no clearly defined limit in California that tells us how "impaired" is too impaired to drive.  To be guilty of driving under the influence of drugs, prosecutors must prove that you were intoxicated to such a degree that you could not operate a vehicle with the skill and care of a normal, sober driver.  That can be complicated.

If you are arrested on suspicion of drunk driving, you will be given the choice of either submitting to a blood test or a breath test.  If officers suspect that you are impaired by drugs, though, you must give a blood sample (a breath test will not detect drugs other than alcohol).  The Orange County Crime Lab will screen your blood sample for 5 drugs: alcohol, THC (both active delta-9 THC and its metabolites), opiates, cocaine, amphetamine and benzodiazepines (prescription drugs like Xanax).  The presence of one or more of these drugs, though, does not necessarily prove that you are dangerously impaired or guilty of a DUI.  Many drugs have a safe, therapeutic application. Someone who suffers from ADD, for example, might be a safer, more attentive driver after he takes his Adderall.  The fact that he tests positive for amphetamine, then, does not prove that he is dangerously impaired by drugs.

Marijuana is an especially tricky one.  Most people have heard that THC is detectable in the blood for weeks after use.  This is only partly true.  When you smoke weed, delta-9 THC is the chemical that actually causes you to feel "high".  After you consume delta-9 THC, your body metabolizes the drug and produces a chemical called "carboxy THC" (COOH-THC).  Carboxy THC has no psychoactive effect, but it may remain traceable for days or weeks.  Carboxy THC, then, may be evidence of recent marijuana use, but it means nothing if we're trying to determine whether or not a subject is impaired at the moment.  When the crime lab analyzes your blood sample, their report will show your levels of both delta-9 THC (the stuff that is currently making you high), and COOH-THC (evidence of past use).  In some cases, high levels of COOH-THC can actually support your defense.  If you are an experienced user, you might have a high tolerance for the drug.  In that case, even high levels of active delta-9 THC might not necessarily prove that you were dangerously stoned at the time of driving.

If you or a loved one has questions about driving under the influence of drugs in Orange County, call us for a free attorney consultation. (714) 449-3335. Ask for John.

Thanks for reading.

Orange County DUI Lawyer