Evidence Archives – Page 5 of 27 – North Carolina Criminal Law

DNA Test Results: Probability vs. Fallacy

May 8, 2018 Jonathan Holbrook

The State of North Carolina goes to trial against Donnie Defendant, who is alleged to be the infamous “Tarheel State Killer” and charged with committing a series of brutal assaults and murders several decades ago. The state’s case depends heavily on matching DNA evidence from the crime scene to a sample of DNA taken off a cigarette butt discarded by Donnie. At trial, Special Agent Wanda Witness testifies as an expert in forensic DNA analysis for the state. After explaining the science behind PCR, STR, loci, and markers, Wanda opines that Donnie’s DNA is indeed a match to the DNA recovered from the crime scene.

Sounds like good news for the state, but what exactly does a “match” mean? And how may the significance or statistical probability of that “match” be expressed to the jury? It’s an important question, because what might sound like two similar ways of expressing the same probability can have dramatically different meanings – and possibly even be considered error on appeal.

State v. Fincher: No Foundation Required for DRE Testimony

April 18, 2018 Shea Denning

The court of appeals held yesterday in State v. Fincher, ___ N.C. App. ___, ___ S.E.2d ____ (2018), that the trial court did not abuse its discretion when it permitted a drug recognition expert to testify in a DWI trial that the defendant was under the influence of a central nervous system depressant. The defendant argued that the State failed to lay a sufficient foundation to establish the reliability of the drug recognition examination, but the court determined that no such foundation was required as the General Assembly had legislatively sanctioned the admission of this type of evidence under Rule 702(a1)(2).

Determining Probable Cause for Drug Crimes without Field Tests

April 24, 2018March 19, 2018 Jeff Welty

Some law enforcement agencies concerned about officers’ exposure to fentanyl have stopped field testing white powders. A question I’ve had several times is whether a magistrate may find probable cause for a drug offense involving a white powder without a field test. The answer to that question is yes, so long as the totality of the circumstances provides reason to believe that the powder in question is a controlled substance.

Rule 803(6): Please Hold for the Next Available Representative…

February 25, 2019March 13, 2018 Jonathan Holbrook

A few weeks ago I participated in a seminar on digital evidence, and one of the topics we discussed was cell phone records (subscriber information, call detail records, historical location data, etc.). That’s not surprising, since the widespread use of cell phones has made these records an increasingly common and important tool in criminal cases. Location data can help prove that the defendant was in the victim’s house at the time of the murder, call logs can help prove the co-conspirators were in regular contact with each other, and so on.

What did surprise me was when I asked a group of 75+ prosecutors how often they have used an affidavit to authenticate these kinds of records and get them admitted into evidence, without the need for live testimony by a witness from the company? Only one prosecutor had ever done so, and that was in a case with a pro se defendant. There seemed to be a lot of confusion about (i) whether this was even possible, (ii) old rules vs. new rules, and (iii) state court vs. federal court, so I thought this post would be a good opportunity to help clear things up.

Confusing Recorded Recollection and Present Recollection Refreshed

March 5, 2018 Jessica Smith

I wrote a post (here) about the recorded recollection exception to the hearsay rule, in which I noted that this exception often is confused with the technique of present recollection refreshed under Evidence Rule 612. We see a little of that in the recent court of appeals decision, State v. Brown. Let’s take a look.

Identifying a Person Shown in a Surveillance Video

February 27, 2018 Jessica Smith

Sometimes the crime is caught on video. When this happens, can an officer identify the perpetrator as the defendant? This issue came up in State v. Weldon, a recent court of appeals case. Let’s go through the rules.

Think You Know Drug ID?

September 1, 2021February 20, 2018 Phil Dixon

A considerable amount of digital ink has been expended on this blog discussing the rules for identifying drugs at trial and related issues, although it has been several years since we covered it. It’s an important and potentially dispositive issue in drug trials. Consider the following fact pattern:

The defendant is charged with possession of methamphetamine. During her arrest and processing, she tells the officer that she has “meth” on her person, which is seized by the officers. At trial, the officer testifies to her statement about the nature of the substance, and the alleged meth is itself introduced at trial. However, no chemical analysis is introduced, nor is there any expert testimony about the substance, and the defendant presents no evidence. At the close of the State’s evidence, the defendant moves to dismiss, arguing that the State failed to provide sufficient proof of the identity of the alleged drugs. Should the motion be allowed? Read on for the answer.

Obtaining and Admitting Evidence from a Vehicle’s Black Box

February 14, 2018 Shea Denning

The number of people killed in motor vehicle crashes in the United States increased in by 5.6 percent from 2015 to 2016. In 2016, 37,461 people were killed in crashes on U.S. roadways, compared to 35,485 the previous year. North Carolina’s fatality figures followed the national trend, with fatalities increasing from 1,379 in 2015 to 1,450 in 2016, a 5.1 percent increase. Many such fatalities result in criminal vehicular homicide charges, which number in the hundreds each year in North Carolina alone.

Investigators and prosecutors in such cases are increasingly relying upon the vehicle itself to tell the story of what happened during and just before the crash. Many vehicles driven today (and nearly all manufactured in the past five years) are equipped with an Event Data Recorder (EDR) installed by the manufacturer. An EDR, often referred to as a car’s black box, contains data related to various aspects of the car’s operation seconds before a crash, including its speed, whether the brakes were applied, and the position of its gas pedal. This kind of evidence can play a central role in the State’s attempt to show culpably negligent driving. But how may the State lawfully obtain EDR information? And, once obtained, how may it be introduced into evidence?

Evidence Issues Involving Children

February 6, 2018February 6, 2018 John Rubin

Many years ago my colleague Janet Mason recruited me to teach about evidence issues in abuse, neglect, dependency, and termination of parental rights cases. She asked because most of the appellate law was criminal. After some grumbling, I produced a skinny 10-page paper in 2001. I’ve been adding to it ever since, and it has grown to a much longer chapter in the just-released 2017 edition of Abuse, Neglect, Dependency, and Termination of Parental Rights Proceedings in North Carolina. Although the manual is not about criminal cases, it may be helpful to those who work in the criminal courts. You can access the manual at no charge here. You can jump directly to the evidence chapter here.

DWI Day at the Court of Appeals

November 8, 2017 Shea Denning

Yesterday was opinion day at the court of appeals. And while it wasn’t officially designated as DWI opinion day, several of yesterday’s opinions resolve significant and recurring issues in DWI litigation. Today’s post will cover the highlights.