Showing posts with label Blood test results. Show all posts
Showing posts with label Blood test results. Show all posts

Monday, November 23, 2020

Minneapolis DWI Lawyer F. T. Sessoms Blogs on Minnesota DWI: This Week's Featured Minnesota DWI Case

The Minnesota DWI Case Of The Week is State v. French (Decided November 23, 2020, Minnesota Court of Appeals, Unpublished), which stands for the proposition that the Confrontation Clause does not prohibit the use of machine or computer generated data.

In French, the Defendant was arrested for DWI in Becker County, Minnesota and the police obtained a search warrant for his blood.  The results of the blood test revealed the presence of amphetamine and methamphetamine. 

Mr. French was subsequently charged with felony DWI.  The defense subsequently learned that, "D.Z.", the scientist who analyzed French's blood, had retired and was not available to testify at trial.  The defense then moved to exclude the results of D.Z.'s lab report as D.Z. was unavailable to testify.

The district court concluded that “the BCA lab report prepared by [D.Z.] is inadmissible unless [D.Z.] herself testifies at trial.” But the court “reserved ruling as to whether another BCA scientist may testify as an expert witness at trial".

Over French’s objection, the district court allowed BCA scientist J.S. testify that French’s blood had been tested for the presence of controlled substances, but that she was not the analyst who conducted the testing. Although D.Z.’s report was not admitted into evidence, J.S. testified that she independently reviewed the raw data in the file associated with French’s case and concluded that French’s blood sample showed the presence of amphetamine and methamphetamine.

The Defendant was convicted of Felony DWI and on appeal, he argued the admission of J.S.’s opinion testimony, that French’s blood tested positive for a controlled substance, violated his Confrontation-Clause rights because, “the BCA scientist who actually performed the test did not testify".

The Minnesota Court of Appeals affirmed the Defendant's conviction noting:

"As the state points out, French does not address this court’s decision in State v. Ziegler, 855 N.W.2d 551 (Minn. App. 2014). In that case, the defendant was charged with criminal vehicular operation (CVO) and reckless driving. Ziegler, 855 N.W.2d at 552. In preparing for trial, a state trooper used computer software to extract data from the defendant’s vehicle, such as the vehicle’s speed and brake activation prior to the accident at issue. Id. The software generated a report containing the data from the defendant’s vehicle. Id. At trial, however, the prosecution called a different state trooper who provided accident-reconstruction testimony based on his review of the machine¬generated report. Id. at 552-53. The testifying trooper admitted that he was not present when the software extracted the data from the defendant’s vehicle, or when the report was generated. Id. at 553. He also admitted that he did not know whether the software was working properly when the vehicle data was extracted, or whether all proper procedures were followed. Id."

"A jury found the defendant guilty of the charged offenses. Id. On appeal, the defendant argued that the district court violated her Sixth Amendment right to confrontation by admitting the data collected from her vehicle through the testimony of a trooper who was not present when the data was collected. Id. at 554. This court disagreed, concluding that “machine-generated data that do not contain the statements of human witnesses are not testimonial statements within the meaning of the Confrontation Clause.” Id. at 558. In reaching its decision, the court recognized that “Melendez-Diaz, Bullcoming, Caulfield, and Weaver do not determine the issue presented in this case because in those cases, the objectionable evidence was not limited to machine generated data; it included out-of-court statements made by people regarding the data.” Id. at 555. But the court stated that “several federal circuit courts have addressed the issue and concluded that such data are not testimonial statements within the meaning of the Confrontation Clause.” Id. The court then referred to a Seventh Circuit Court case, which “noted that a chemist’s report admitted into evidence had ‘two kinds of information: the readings taken from the instruments, and the chemist’s conclusion that these readings mean that the tested substance was cocaine’ and that only ‘the latter is testimonial as the Supreme Court used that word in Crawford.’” Id. at 556 (quoting United States v. Moon, 512 F.3d 359, 361-62 (7th Cir. 2008)). The court also referenced a Fourth Circuit Court case, which concluded that “‘printed data’ generated from chromatograph machines operated by lab technicians were not ‘statements of the lab technicians who operated the machines’ and thus ‘not out- of-court statements made by declarants that are subject to the Confrontation Clause.’” Id. (emphasis omitted) (quoting United States v. Washington, 498 F.3d 225, 229-30 (4th Cir. 2007))."

"This case is akin to Ziegler. As in Ziegler, a machine generated the raw data related to French’s blood sample. Under Ziegler, the raw data is not testimonial. See id. at 558. Although the conclusions in D.Z.’s report are testimonial, the report was not admitted into evidence. Instead, J.S. testified regarding her independent review of the machine¬generated data. As in Ziegler, the admission of machine-generated data through J.S.’s testimony did not trigger French’s right of confrontation under the Sixth Amendment. See id. And as the court noted in Ziegler, any question regarding the foundation for J.S.’s opinion is not relevant to French’s Confrontation-Clause argument. See id. at 558 (stating that the defendant’s “concerns regarding the reliability of the data and the data-retrieval process are not resolved under the Confrontation Clause”). Accordingly, J.S.’s testimony about the presence of controlled substances in French’s blood did not violate French’s right to confrontation."

Moral Of The Story: Machine's don't lie. Only people do.

If you or a loved one have been charged with a Minnesota DWI, feel free to contact Minneapolis DWI Lawyer, F. T. Sessoms at (612) 344-1505 for answers to all of your Minnesota DWI and DUI questions.



 

Monday, April 25, 2016

Minneapolis DWI Attorney Blogs on Minnesota DWI: This Week's Featured Minnesota DWI Case

The Minnesota DWI Case Of The Week is Kuehn v. Commissioner of Public Safety (Decided April 25, 2016, Minnesota Court of Appeals, Unpublished) which stands for the proposition that speculation as to the accuracy of blood test results is not sufficient to exclude the test results from evidence.

In Kuehn, the Petitioner was arrested for DWI by the Minnesota State Patrol on June 26, 2014. The Petitioner was taken to Lakeview Hospital in Washington County where he agreed to submit to a blood test.  The state trooper provided the medical technologist with a BCA approved DWI blood-draw kit and after a sample was obtained from the Petitioner, the trooper sealed the blood-test kit and subsequently delivered it to his district office.

The blood sample was received by the Minnesota BCA on July 1, 2014 and was analyzed by the Bureau of Criminal Apprehension on July 8 and 9.  Until the BCA received the sample, it was not refrigerated, but the blood-test vial contained preservatives that prevent most degradation by heat.

The Petitioner had a blood-test expert testify at the license revocation hearing.  The expert claimed that many things could affect the accuracy of the testing, including the Petitioner's diabetes, exposure to heat, discrepancies in the amount of preservatives in the blood-test kit and contamination by the yeast Candida albicans.  The expert did not testify that any of these factors actually affected Kuehn's test result, but he speculated about the effect such factors could have on a blood sample.

The State's expert witness testified that she conducted the BCA analysis of Kuehn's blood sample.  She testified that the sample was refrigerated after it arrived a the BCA and that preservatives in the blood kit prevented fermentation of the sample from heat.  She testified that she observed no irregularities during the testing of the sample and that the sample was analyzed on two different days on two different gas chromatograph columns.

The state's expert also testified that tests are run on different columns because "[e]ach has its own chemistry which separates the volatiles differently. And it is done on two different columns to ensure identification of ethanol, as well as the reliability of the result." The results indicated that Kuehn had an alcohol concentration of 0.1551 or 0.1581.

The state's expert explained that the different peaks on the printed results indicated the presence of other compounds, including the presence of acetone, and that they were not unusual for someone with an underlying health problem like Kuehn, who is diabetic. But she also testified that the presence of these other compounds does not affect the ultimate ethyl-alcohol result. She affirmed that the computer software corrects for non-resolution, and does so by slightly lowering the ethyl-alcohol concentration. She stated that heat can degrade a blood sample, but there must also be some sort of bacteria or impurity, and the stabilizing agent slows any breakdown. The BCA is not concerned about possible Candida albicans contamination because it is relatively rare and the subject would most likely be hospitalized.

The District Court sustained the license revocation and on appeal, the Minnesota Court of Appeals agreed, stating:

"The commissioner, as the proponent of a chemical test, has the burden to establish a prima facie case that the test was reliable and appropriate procedures were followed to ensure reliability. Genung v. Comm 'r of Pub. Safety, 589 N.W.2d 311,313 (Minn. App. 1999), review denied (Minn. May 18, 1999). The burden then shifts to the party opposing admission of chemical testing results to demonstrate why the test is not reliable or accurate. Id. The commissioner bears the ultimate burden of persuasion. But "arguing that something might have occurred is mere speculation and insufficient [to rebut chemical testing results] unless supported by additional evidence. [An appellate court] requires that the driver establish a relationship between the alleged error and the validity of the results."

In this case, the Petitioner's expert testified that various factors might have effected the blood test result.  But without any proof that any of these factors did, in fact, effect the test result, the revocation will be sustained.

Moral of The Story:  You can lead a court to water, but you can't make it drink.

If you or a loved one has been arrested for a Minnesota DWI, feel free to contact Minneapolis DWI Attorney, F. T. Sessoms at (612) 344-1505 for answers to all of your Minnesota DWI questions.