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Evidence Commons™

Open Access. Powered by Scholars. Published by Universities.®

2017

Criminal Law

Selected Works

Articles 1 - 13 of 13

Full-Text Articles in Evidence

19. Child Witnesses., Thomas D. Lyon, Kelly Mcwilliams, Shanna Williams Nov 2017

19. Child Witnesses., Thomas D. Lyon, Kelly Mcwilliams, Shanna Williams

Thomas D. Lyon

In this chapter we provide an overview of psychological issues involving children’s capacities as witnesses. First, we discuss the kinds of cases in which children are usually involved. Across different courts, one most often sees children describing abuse at the hands of familiar adults. Second, we describe the difficulties children encounter in disclosing abuse, particularly when it is perpetrated by adults close to them. These dynamics lead most children to remain silent, and only the most forthcoming children to disclose. Third, we suggest a framework for assessing children’s allegations, in which child-generated and adult-generated information lie on opposite ends of …

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61. The Relation Between Young Children’S False Statements And Response Latency, Executive Functioning, And Truth–Lie Understanding., Shanna Williams, Elizabeth C. Ahern, Thomas D. Lyon Nov 2017

61. The Relation Between Young Children’S False Statements And Response Latency, Executive Functioning, And Truth–Lie Understanding., Shanna Williams, Elizabeth C. Ahern, Thomas D. Lyon

Thomas D. Lyon

This study examined relations between children’s false statements and response latency, executive functioning, and truth-lie understanding in order to understand what underlies children’s emerging ability to make false statements. A total of 158 (2- to 5-year-old) children earned prizes for claiming that they were looking at birds even when presented with images of fish. Children were asked recall (“what do you have?”), recognition (“do you have a bird/fish?”), and outcome (“did you win/lose?”) questions. Response latencies were greater when children were presented with fish pictures than bird pictures, particularly when they were asked recall questions, and were greater for false …

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60. The Effects Of Promising To Tell The Truth, The Putative Confession, And Recall And Recognition Questions On Maltreated And Non-Maltreated Children’S Disclosure Of A Minor Transgression., Jodi A. Quas, Stacia N. Stolzenberg, Thomas D. Lyon Nov 2017

60. The Effects Of Promising To Tell The Truth, The Putative Confession, And Recall And Recognition Questions On Maltreated And Non-Maltreated Children’S Disclosure Of A Minor Transgression., Jodi A. Quas, Stacia N. Stolzenberg, Thomas D. Lyon

Thomas D. Lyon

This study examined the utility of two interview instructions designed to overcome children’s reluctance to disclose transgressions: eliciting a promise from children to tell the truth and the putative confession (telling children that a suspect “told me everything that happened and wants you to tell the truth”). The key questions were whether the instructions increased disclosure in response to recall questions and in response to recognition questions that were less or more explicit about transgressions, and whether instructions were differentially effective with age. Two-hundred and seventeen 4- to 9-year-old maltreated and comparable non-maltreated children played with a stranger. This included …

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The Forensic Community Can Educate Lawyers, Judges, Robert M. Sanger Jun 2017

The Forensic Community Can Educate Lawyers, Judges, Robert M. Sanger

Robert M. Sanger

Forensic science has made significant strides in elevating the standards for forensic analysis, reporting and testimony over the last few years. Yet, lawyers and judges lag far behind in understanding the significance of these strides. There is an attempt to educate law students in the law schools and to educate lawyers and judges through continuing legal and judicial education but it is slow in finding its way into the actual courtroom. Therefore, while there is progress at the highest levels of forensic science, a lot of "junk" science competes for the attention of jurors.

Forensic scientists can help educate the …

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Law Enforcement And Criminal Law Decisions, Erwin Chemerinsky Jun 2017

Law Enforcement And Criminal Law Decisions, Erwin Chemerinsky

Erwin Chemerinsky

No abstract provided.

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The British Experience With Hearsay Reform: A Cautionary Tale, Mark S. Brodin May 2017

The British Experience With Hearsay Reform: A Cautionary Tale, Mark S. Brodin

Mark S. Brodin

Among the proposals being considered by the Advisory Committee on the Federal Rules of Evidence (“the Committee”) is the scrapping of the categorical exception regime for hearsay, leaving questions of reliability and admissibility ad hoc to district court judges along the lines of Federal Rules of Evidence (FRE) 403 and 807. Over the past decades, the British have moved toward this approach, and it is the purpose of this Article to identify the lessons that can be learned from that experience, especially with regard to criminal prosecutions and the right of confrontation.

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Small Cells, Big Problems: The Increasing Precision Of Cell Site Location Information And The Need For Fourth Amendment Protections, Robert M. Bloom, William T. Clark May 2017

Small Cells, Big Problems: The Increasing Precision Of Cell Site Location Information And The Need For Fourth Amendment Protections, Robert M. Bloom, William T. Clark

Robert M. Bloom

The past fifty years has witnessed an evolution in technology advancement in police surveillance. Today, one of the essential tools of police surveillance is something most Americans carry with them in their pockets every day, the cell phone. Cell phones not only contain a huge repository of personal data, they also provide continuous surveillance of a person’s movement known as cell site location information (CSLI). In 1986, Congress sought to provide some privacy protections to CSLI in the Stored Communication Act. Although this solution may have struck the proper balance in an age when cell phones were a mere novelty …

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59. Ask Versus Tell: Potential Confusion When Child Witnesses Are Questioned About Conversations, Stacia N. Stolzenberg, Kelly Mcwilliams, Thomas D. Lyon May 2017

59. Ask Versus Tell: Potential Confusion When Child Witnesses Are Questioned About Conversations, Stacia N. Stolzenberg, Kelly Mcwilliams, Thomas D. Lyon

Thomas D. Lyon

Children’s potential confusion between “ask” and “tell” can lead to misunderstandings when child witnesses are asked to report prior conversations. The verbs distinguish both between interrogating and informing and between requesting and commanding. Children’s understanding was examined using both field (i.e., Study 1) and laboratory (i.e., Studies 2-4) methods. Study 1 examined 100 5- to 12-year-olds’ trial testimony in child sexual abuse cases, and found that potentially ambiguous use of ask and tell was common, typically found in yes/no questions that elicited unelaborated answers, and virtually never clarified by attorneys or child witnesses. Studies 2-4 examined 345 maltreated 6- to …

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The Corroborative Effect Of Lies, Siyuan Chen Apr 2017

The Corroborative Effect Of Lies, Siyuan Chen

Siyuan CHEN

PP v Kamrul Hasan Abdul Quddus [2010] SGHC 7; Kamrul Hasan Abdul Quddus v PP [2011] SGCA 52. Overview of the case: In PP v Kamrul Hasan Abdul Quddus, the accused was charged with murder. He and the deceased had been in a tumultuous relationship, and the main evidence that connected the deceased’s death to the accused, apart from the fact that her body was found in the construction site that the accused worked at, was that DNA taken from her rectum tested positive for semen that matched his DNA.

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Reliability And Relevance As The Touchstones For Admissibility Of Evidence In Criminal Proceedings: Muhammad Bin Kadar V Pp [2011] 3 Slr 1205 [Case Note], Siyuan Chen Apr 2017

Reliability And Relevance As The Touchstones For Admissibility Of Evidence In Criminal Proceedings: Muhammad Bin Kadar V Pp [2011] 3 Slr 1205 [Case Note], Siyuan Chen

Siyuan CHEN

The Court of Appeal in Muhammad bin Kadar v PP [2011] 3 SLR 1205 (“Kadar”) formally recognised the judicial discretion to exclude evidence as an integral part of the law on criminal evidence in Singapore. This discretion, the court held, would help ensure that all evidence coming before the court would be as reliable as possible. While this commentary agrees that the foundational basis for the exclusionary discretion doctrine is desirable, it suggests that there are difficulties with the application of the doctrine. An alternative approach that works around the difficulties is canvassed for consideration.

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58. The Effects Of Secret Instructions And Yes/No Questions On Maltreated And Non-Maltreated Children’S Reports Of A Minor Transgression., Elizabeth C. Ahern, Stacia N. Stolzenberg, Kelly Mcwilliams, Thomas D. Lyon Jan 2017

58. The Effects Of Secret Instructions And Yes/No Questions On Maltreated And Non-Maltreated Children’S Reports Of A Minor Transgression., Elizabeth C. Ahern, Stacia N. Stolzenberg, Kelly Mcwilliams, Thomas D. Lyon

Thomas D. Lyon

This study examined the effects of secret instructions (distinguishing between good/bad secrets and encouraging disclosure of bad secrets) and yes/no questions (DID: “Did the toy break?” versus DYR: “Do you remember if the toy broke?”) on 262 4- to 9- year old maltreated and nonmaltreated children’s reports of a minor transgression. Over two-thirds of children failed to disclose the transgression in response to free recall (invitations and cued invitations). The secret instruction increased disclosures early in free recall, but was not superior to no instruction when combined with cued invitations. Yes/no questions specifically asking about the transgression elicited disclosures from …

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18. When Interviewing Children: A Review And Update., Karen J. Saywitz, Thomas D. Lyon, Gail S. Goodman Jan 2017

18. When Interviewing Children: A Review And Update., Karen J. Saywitz, Thomas D. Lyon, Gail S. Goodman

Thomas D. Lyon

In this chapter, we highlight principles for interviewing children based on the best available science, understanding that such principles keep changing as new evidence accumulates and that gaps exist in the knowledge base where guidance is limited. Interviewers will need to stay abreast of new developments. First, we briefly describe the data base from which the tools derive--studies conducted in the laboratory and in the field. Then we discuss evidence-based interview tools and features of the interview about which there is sufficient empirical evidence and consensus to derive “toolboxes.” We discuss interview structure, setting, children’s reluctance and suggestibility, rapport development, …

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57. Spatial Language, Question Type, And Young Children’S Ability To Describe Clothing: Legal And Developmental Implications., Stacia N. Stolzenberg, Kelly Mcwilliams, Thomas D. Lyon Dec 2016

57. Spatial Language, Question Type, And Young Children’S Ability To Describe Clothing: Legal And Developmental Implications., Stacia N. Stolzenberg, Kelly Mcwilliams, Thomas D. Lyon

Thomas D. Lyon

Children’s descriptions of clothing placement and touching with respect to clothing are central to assessing child sexual abuse allegations. This study examined children’s ability to answer the types of questions attorneys and interviewers typically ask about clothing, using the most common spatial terms (on/off, outside/inside, over/under). Ninety-seven 3- to 6-year-olds were asked yes/no (e.g. “Is the shirt on?”), forced-choice (e.g., “Is the shirt on or off?”), open-choice (e.g., “Is the shirt on or off or something else?”), or where questions (e.g., “Where is the shirt?”) about clothing using a human figurine, clothing, and stickers. Across question types, children generally did …

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