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Motion to Split Blood/Urine Sample

Individuals arrested for  driving under the influence (DUI) or  driving under the influence of drugs (DUID) must be advised of their right to have a blood or urine sample preserved for retesting by an independent lab.  After agreeing to submit to chemical testing, suspected DUI or DUID offenders should make such a request. 

 

A key issue in any DUI or DUID case is the integrity of any blood test sample.  All too often, blood samples will ferment, clot, or be rendered unreliable because of bacterial growth.  In addition, blood tests may not have been administered properly.  The end result is an inaccurate report of a driver’s true blood-alcohol content level.  Also, original blood or urine samples are often destroyed or lost.  Fortunately, if suspected DUI offenders make a request to have a sample of their blood preserved for later testing, it is mandated that the police must do so.  Additionally, the police must insure that the sample is properly preserved.  If the police failed to preserve a requested sample, a savvy California DUI attorney can file for sanctions which could result in the exclusion of any such evidence at trial. 

The benefit of having independent testing done on one’s blood or urine sample is that the independent lab may establish that the DUI suspect’s blood-alcohol content at the time of driving was not in fact above the legal limit.  Furthermore, the lab will be able to detect if the anti-coagulant and the preservative were in the tube in proper amounts, whether the sample is the same blood type as the DUI suspect’s, and whether or not there has been any bacterial activity.  Overall, independent lab testing can reflect whether proper testing procedures were adhered to.

 

About Motions to Split Blood/Urine Samples

California DUI defense lawyers whose clients submitted to chemical testing will often file Motions to Split Blood/Urine Samples.  If the District Attorney’s office fails to comply with an order granting a blood or urine sample split analysis, the  California DUI attorney can move for sanctions against the District Attorney and move to have any chemical test results excluded from trial.  In addition, if the police failed to preserve a sample for future testing when requested by a suspected DUI offender, then not only could any such evidence be excluded from trial, but also all charges against the suspected DUI offender may possibly be dropped.  It should be noted, however, that the defense must prove that the police acted in bad faith.  If it can not be established that the police acted in bad faith, the suspected DUI offender is only entitled to relief resulting in showing that any chemical test results are exculpatory. 

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