The mathematical approach and the resulting software also have the promise of aiding the FDE. This evidence can then be taken into account by the court in deciding whether or not X knew that the property he had in his possession on the present occasion was in fact stolen. This is why it is wrong to use the shortcut device of prompting X simply to adhere to his initial outline when giving evidence in chief before cross-examination commences. So it is not just a question of who is telling the truth, but how much of the truth is being told by each of them. The complainant was a quiet and reserved person. The courts have interpreted this provision to mean that even where there is no proof aliunde (from another source than the evidence of the accomplice) of the commission of the offence X can still be convicted if there is corroboration in a material respect of the evidence of the accomplice. An identification parade is a procedure where a complainant or witness should independently identify the suspect or the wrongdoer without being given a clue which is designed to expedite police investigations. Questions that also need to be considered are: Is the quality of the specimens under examination good enough for examination? Dr. Rovner has a doctorate in psychology with a specialty in psycho-physiology and a masters degree specializing in biopsychology. Since its inception this Journal has had an Editorial Board consisting of editors from the Faculty of Law at the University of, Using religion to sexually exploit young female parishioners Case note on the Gumbura rape cases - By Geoff Feltoe, When Culture Clashes with the Criminal Law Case note on S v Hamunakwadi 2015 (1) ZLR 392 (H); S v Musino HH-158-17 and S v Taurayi HH-298-90 By Geoff Feltoe, Aligning the Administrative Justice Act with the Constitution, Final Papers of the 2016 National Symposium on the Promise of the Declaration of Rights under the Constitution of Zimbabwe, SELECTED ASPECTS OF THE 2013 ZIMBABWEAN CONSTITUTION AND THE DECLARATION OF RIGHTS, African Customary Law, Customs, and Women's Rights - Muna Ndulo, A GUIDE TO ADMINISTRATIVE AND LOCAL GOVERNMENT LAW IN ZIMBABWE, Commentary on the Criminal Law (Codification and Reform) Act [Chapter 9:23]. An error rate in the context of a scientific discussion is defined as a continuous, repeatable, consistent action that yields a predictable level of false positive or false negative results in casework (Budowle et al., 2009). . In addition, a number of courts have rejected a per se rule of inadmissibility where polygraph examination results are concerned and in some cases have remanded for a determination of admissibility. The same rule, namely that the onus is upon the State to prove the guilt of X, applies in respect of statutory crimes. Although the evidence of one witness may in any particular case be more convincing than of a number, it remains true that, given the same apparent quality in the witnesses, the more there are, the more reason there is to accept their story. This sort of evidence would need to be probed extremely carefully. Note that the statement of X in reply to police questions is only evidence against the maker of the statement and is not evidence against any other person: s 259 CPEA. There is no rule of thumb to be applied when deciding upon the credibility of single witness testimony. This is because there is no opportunity for cross-examination of the person who made this statement when he makes his statement. The State wished to call another prison officer to give testimony. Where an identification of a suspect has been made easier by a police officer’s conduct, conscious or otherwise, the courts should be ready to condemn such proceedings without more ado. State evidentiary rules may so seriously impede the discovery of truth, “as well as the doing of Justice,” that they preclude the “meaningful opportunity to present a complete defense” that is guaranteed by the Constitution, Crane v. Kentucky, (1986) 476 U. S. 683, 690 (internal quotation marks omitted). C. §351.1’s “categorical prohibition” of polygraph evidence. The accomplice may tell lies about another person in the hope that, by testifying against another person, he will secure an indemnity from prosecution or he will receive a lighter sentence or, if he has already been sentenced, that he will receive clemency. See Campos, 217 F.3d at 712 n. 2 (polygraph evidence potentially admissible for collateral purposes). In examining the reliability of evidence of identification from photographs, the magistrate must ascertain whether the identification exercise was fairly conducted. If it is possible, the statement should be in writing and read over to and signed by the deceased. In Crumby 895 F. Supp. There must not only be similarity between the previous acts and those in issue, but such a concurrence of common features that the various acts are naturally to be explained as caused by a general plan of which they are the individual manifestations. In Chikasha S-94-94appellant was a postal clerk; he recorded he had received $3 000 one day when he had received $3 200, and his books did not account for the extra $200, leaving him with a general deficiency for that amount that day. Further, Defendant has Constitutional rights that allow him to present the evidence (as discussed hereinbelow). A State witness may have made a statement to the police which was against X. Elements of corroboration may of course appear from the circumstances; the fact that an accused person has given no evidence may be an element. Even where there is no proof aliunde that the crime has been committed, the statutory requirement can still be satisfied if there is corroboration in a material respect which convinces the court that the accomplice can safely be relied on when he says the crime was committed, though it need not directly implicate X. They could not be explained by fear or other reasons. Given the recent advancements in polygraph technology, this Court should find that the Sixth Amendment and Fourteenth Amendment warrant the admission of non-stipulated polygraph evidence in this limited situation in which the proffered polygraph is reliable, the polygraphist is subject to cross-examination, and where no jury can be swayed unduly. Surely, courts of law would not countenance using the results of trial by combat or the testimony of a Ouija board interpreter, no matter how much advance stipulation by the parties had taken place. Certain witnesses are not competent to give evidence according to the rules of evidence. A police vehicle arrived at the scene and, after a report, the police details gave chase. However, in the later case of Sauls & Ors 1981 (3) SA 172 (A) the South African Appellate Division stated that there was no rule of thumb to be applied when deciding upon the credibility of single witness testimony. Where there is a single witness to the crime itself, corroboration may be by facts and circumstances proved by other evidence than that of a single witness who is to be corroborated. In practice this means that the defence lawyer must call psychiatric evidence to prove this defence on a balance of probabilities. the warning administered to an accomplice witness is not for the benefit of X but is a promise to the witness. “Nor were those named the only grounds of exclusion from the witness stand; conviction of crime, want of religious belief, and other matters were held sufficient. It means only that their memory of a sudden, unexpected, fast-moving and fast-changing series of events is faulty. … The right to compel a witness’ presence in the courtroom could not protect the integrity of the adversary process if it did not embrace the right to have the witness’ testimony heard by the trier of fact. He would therefore be declared hostile and the State would be entitled to cross-examine him. Excluding “inconclusive” results from each test, the fingerprinting expert resolved 100% of the cases correctly, the polygrapher resolved 95% of the cases correctly, the handwriting expert resolved 94% of the cases correctly, and the eyewitness resolved only 64% of the cases correctly. In the Prosecutors Handbook, it is pointed out that the statement may amount to: Partial admissions and partial denials need to be particularly carefully treated. There was no testimony given about the appellant’s sex, size, gait, colour or any other distinguishing features. If the court is convinced beyond a reasonable doubt that the sole witness has spoken the truth, it must convict, notwithstanding that he was in some respects unsatisfactory. why it is to be taken; he should be given a copy of the request to a named medical officer. In spite of this, the Court of Appeal has since recognised the admissibility of expert DNA evidence, concerning mixed samples, where there is no statistically-based likelihood ratio to identify the defendant. Widacki & Horvath, An Experimental Investigation of the Relative Validity and Utility of the Polygraph Technique and Three Other Common Methods of Criminal Identification, 23 J. Forensic Sciences 596, 596-600 (1978); see also Honts & Perry 365. Cole, S.A. “Is finger print identification valid? The existence of corroborative evidence is the safest assurance against wrong conviction. The court may thus convict on the basis of a confession either: In Cloete 1994 (1) SACR 420 (A), the court stated that the rule in Valacia 1945 AD 826, that a judicial officer must take into consideration everything contained in an extra-curial statement made by X, including exculpatory portions, applies equally to statements made by X in explanation of his plea under s 163(4) CPEA. It is not the mere opinion of the expert witness which is decisive but the expert’s ability to satisfy the court that, because of the special skill, training and experience, the reasons for the opinion expressed are acceptable. Polygraph tests have gained general acceptance in the scientific fields of psychology, psychiatry and physiology as to the areas of said disciplines devoted to lie detection. Hostility may be inferred through various considerations, which include his demeanour in the witness stand. The illegality was inadvertent as X had surrendered himself at one police station and was collected and dealt with by an investigating officer from another station, who did not notice the time of his arrest. The right to convict on the evidence of a single credible witness, stated without qualifying words in s 269 of CPEA, should not be regarded as putting the evidence of one witness on the same footing in regard to the cogency as the evidence of more than one. P’s evidence had not been rigorously examined to ascertain whether or not he may have falsely implicated the appellant. The child’s mental development and maturity must be assessed very carefully. Synthesizing the three separate opinions, a five-justice majority of the court (Stevens, Kennedy, O’Connor, Ginsburg and Breyer) made clear their positions on the following issues: In a future case, a majority of the Court could hold that admission of polygraph evidence is constitutionally required. Even a number of lines of inference, none of which would be decisive, may in their total effect lead to there being proof beyond reasonable doubt. If the police decide to ask the witness to identify the culprit by looking at photographs, this exercise must be fairly conducted if any identification based thereon is to have reliable evidential value. The State did not support the conviction. 2150] [hereafter Green]; Chambers v. Mississippi (1973) 410 U.S. 284 [35 L.Ed.2d 297, 93 S.Ct. The Constitutional Rights involved override Evid. “There is a unanimity of opinion of those experts that have the qualifications, training, and experience in conducting polygraph examinations, i.e., that the relevant scientific community considers polygraph evidence accurate and reliable. Slight imperfections would not rule out reliance on that evidence, but material imperfections would. Factors which should be taken into account include the following: See Mutters & Anor S-66-89; Nkomo & Anor 1989 (3) ZLR 117 (S) and Ncube & Anor HB- 55-13. She must show evidence of physical resistance. (handwriting comparison). of utterances asserting his innocence . Interestingly, when “inconclusive” results were included, the polygraph test was more accurate than any of the other methods: The polygrapher resolved 90% of the cases correctly, compared with 85% for the handwriting expert, 35% for the eyewitness, and 20% for the fingerprinting expert. The United States Supreme Court suggested significant advancements have occurred concerning the reliability and relevancy of polygraph tests in the Court’s concurring opinion in Sheffer. V. U.S. v. SHEFFER DOES NOT PROHIBIT POLYGRAPH EVIDENCE UNDER THE FACTS OF THIS CASE, In United States v. Scheffer (1998) 523 U.S. 303 (“Scheffer”), a plurality of four justices upheld an exclusion of polygraph evidence involving a military court martial. Any facts upon which an inference of guilt can be drawn must be proved beyond a reasonable doubt. Single witness evidence should not be relied upon where, for example, the witness has an interest adverse to the accused, has made a previous inconsistent statement, has given contradictory evidence or had no proper opportunity for observation. Case note on the case of S v Ranchi HH 515-17, The Zimbabwe Electronic Law Journal Now a Refereed Journal and the Editors invite you to contribute articles for future volumes. In Elsworth S-55-95 a number of women who had been caught by a farm-guard stealing firewood lodged a complaint with the police that the farmer had stripped them of their clothes. This was wrongful exclusion of possibly material evidence, and the conviction was quashed. In the instant case however, that concern is alleviated by the demonstrated expertise of Dr. Rovner. Her evidence should be treated with great caution. In the case of Mapfumo & Ors 1983 (1) ZLR 250 (S) at 253 (ZS), clarified further the matter of onus in relation to defences. E.g., Webb v. Texas, (1972) 409 U. S. 95; Washington v. Texas, (1967) 388 U. S. 14, 19; In re Oliver, (1948) 333 U. S. 257. If the only reasonable inference the court finds is that the accused is guilty of the crime charged, and that inference is established beyond reasonable doubt, then the court must find the accused guilty of that crime. One chatted to her for 10 minutes and she saw X at the same spot shortly afterwards and identified him. 1038]; Washington v. Texas (1967) 388 U.S. 14 [18 L.Ed.2d 1019, 87 S.Ct. at 1358-63 defense polygraph evidence was admissible to show defendant’s credibility. 3. Any ruling excluding reliable, relevant defense evidence that rebuts prosecution evidence would violate a citizen’s constitutional right to present a defense to a criminal charge. Read more ». The study consisted of 80 volunteers divided into 20 groups of 4. However, a number of precautions have to be observed before such evidence can be accepted. Superior Court (1982) 133 Cal.App.3d 24, the court undertook an extensive analysis of the admissibility of polygraph test evidence. The Thomas four and the Kennedy four agreed that in light of the continuing good faith disagreement among experts and courts on the subject, it is possible to “reasonably reach differing conclusions as to whether polygraph evidence should be admitted” as a matter of constitutional law. The court can convict on the basis of the uncorroborated testimony of the child witness, provided it is satisfied that the dangers inherent in founding a conviction on the child’s uncorroborated evidence have been eliminated. It is not enough that the court warn itself on a token basis of the dangers of accepting these types of evidence. The mere fact that there are some minor discrepancies in the testimony of a witness does not mean that that testimony must be rejected. The purpose of the requirement is to protect an accused from being convicted on the basis of a single witness, who may be either fallible or dishonest. This does not mean they are lying. In cases in which the identity of the footprints of the suspect forms a vital part of the evidence upon which the State relies for conviction, the police should, whenever possible, take a cast or other impression of the footprint at the scene of the crime and a comparative footprint from X. The circumstances in which the identification took place were that as the applicant was brought to the charge office barefooted and was asked to put on his shoes in the presence of the complainant, a procedure which was unusual as it exposed him to the complainant who no doubt regarded him as the culprit and therefore proceeded to identify him as such. Significantly, that case did not present any offer of proof based on the reliability of such evidence. One study compared the accuracy of fingerprinting, handwriting analysis, polygraph tests, and eyewitness identification. A sufficient number of persons of similar build and appearance and similarly dressed should have formed the parade and the witness must have made his identification independently and without any prompting. The complainant and X were related and lived in the same house together. In the course of its review, the court agreed with authorities which held that for such evidence to be admissible, the similar facts must bear a striking similarity to the evidence adduced in relation to the offence charged: “The use of the word ‘striking’ — strengthens the concept that the admission of similar fact evidence requires a ‘strong degree of probative force’, bearing in mind the basic principle that its admission is out of the ordinary and unusual. No handwriting analyses will be undertaken without agreement to terms and conditions which include the consent of the writer except for forensic handwriting/document examination cases where consent is not always available. 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