A Prototype of Mathematical Treatment of Pen Pressure Data for Signature Verification

A prototype using simple mathematical treatment of the pen pressure data recorded by a digital pen movement recording device was derived. In this study, a total of 48 sets of signature and initial specimens were collected. Pearson's correlation coefficient was used to compare the data of the pen pressure patterns. From the 820 pair comparisons of the 48 sets of genuine signatures, a high degree of matching was found in which 95.4% (782 pairs) and 80% (656 pairs) had rPA > 0.7 and rPA > 0.8, respectively. In the comparison of the 23 forged signatures with their corresponding control signatures, 20 of them (89.2% of pairs) had rPA values < 0.6, showing a lower degree of matching when compared with the results of the genuine signatures. The prototype could be used as a complementary technique to improve the objectivity of signature examination and also has a good potential to be developed as a tool for automated signature identification.     

试论非法证据排除的程序规制——关于完善庭审阶段非法证据排除的裁判程序的思考

防止冤假错案,维护程序公正,实现惩罚犯罪与保障人权的统一,非法证据排除规则的制定,可谓任重道远。无疑,法律的颁布不等于实施。除了刑事法官的价值观念、法律思维、职业习惯的主观因素影响及刑事司法实践的客观因素作用,作为价值性冲突规范,非法证据排除规则的理解、适用仍有其难处。本文以庭审阶段非法证据排除的程序规制为切入点,拟从法解释学的角度,结合本土刑事司法实践特征,以求进一步明晰非法证据排除规则的运用,从而更为有效地实施排除规则。     

系统检验方法在可疑文件鉴定中运用

通过对近年来成功解决的几起可疑文件鉴定的典型案例分析,较详细地阐述在文件鉴定实践中,如何运用系统检验的思想,通过可疑文件上留下的细微变造痕迹,巧妙识别可疑文件的伪造手段和方法,为法庭提供科学、可信的证据,取信于法官、律师及当事人,使得案件最终圆满审结.在面对某些疑难案件的鉴定中,在鉴定思路和方法上对文件检验人员,有一定的启示作用.     

Enhancing the Visibility of Injuries with Narrow‐Banded Beams of Light within the Visible Light Spectrum

The use of narrow‐banded visible light sources in improving the visibility of injuries has been hardly investigated, and studies examining the extent of this improvement are lacking. In this study, narrow‐banded beams of light within the visible light spectrum were used to explore their ability in improving the visibility of external injuries. The beams of light were induced by four crime‐lites^® providing narrow‐banded beams of light between 400 and 550 nm. The visibility of the injuries was assessed through specific long‐pass filters supplied with the set of crime‐lites^®. Forty‐three percent of the examined injuries improved in visibility by using the narrow‐banded visible light. In addition, injuries were visualized that were not visible or just barely visible to the naked eye. The improvements in visibility were particularly marked with the use of crime‐lites^® “violet” and “blue” covering the spectrum between 400–430 and 430–470 nm. The simple noninvasive method showed a great potential contribution in injury examination.     

The Spatial Distribution of Postblast RDX Residue: Forensic Implications

Locating exactly where trace explosive residue samples should be sought during sample collection at bomb scenes is not specified in the published literature or guidelines; in this area, it is generally acknowledged that forensic practices are based on tradition rather than evidence. This study investigated patterns in the spatial distribution of postblast 1,3,5‐trinitro‐1,3,5‐triazocyclohexane residue from a series of unconfined detonations, over a range of sampling sites, and at two different detonation heights. The amount of residue recovered from the sites decreased as a function of distance from the center of the explosion. [Correction added after online publication 27 December 2012: In the preceding sentence, “increased” was corrected to “decreased” to agree with the conclusion of the article.] As the height of the detonations increased, more residues were found from all sampling sites. The findings of this empirical study have a number of important practical implications including determining where residue samples are best sought at crime scenes.     

《特殊痕迹检验》课程考核模式的改革与实践

考核模式改革是我校＂教学重心转变＂工作中教学模式改革的重点和核心内容之一。本文通过对《特殊痕迹检验》课程考核模式的改革与实践,提出了适应本专业学生教学练战一体化的考核模式。     

笔迹的多层次及其在检验中的应用

在笔迹检验中,以笔迹多层次属性为基础,才能正确认识笔迹,分析笔迹,系统开展笔迹检验。文章从笔迹形成的多层次和笔迹特征的多层次两个方面系统研究笔迹内在的多层次性,探讨了多层次属性在文件物证检验中的应用,对笔迹检验理论的丰富和检验技术的提高都有着重要的意义。     

大学生思政课教学效果提升研究

在教学过程中,一名大学思政课老师应当针对教学对象特点真正把学生当作教学主体,用理论掌握学生,创新教学方式,开创第二课堂,说理透彻,以理服人,以身作则,紧扣社会热点,贴近学生实际,取得了良好的教学效果。为了进一步提升思政课的教学效果,思政课教学要树立正确的教育目的,思政课老师要着重培养学生的独立思考能力和独立人格,注重启发教育,改革考试内容和形式,加强实践环节教学。     

“切开法”快速鉴定朱墨时序

朱墨时序是指印文与字迹形成的先后顺序。"朱"代表印文,"墨"指与印文形成交叠的字迹笔画。用"切开法"进行光敏印油、印泥印文和喷墨打印字迹、激光打印字迹、复印字迹的朱墨时序鉴定实验,取得了令人满意的效果。实验证明,"切开法",所需器材简单,操作简便,准确率高,对鉴定人从业经验也没有很高要求,非常适合基层一线单位使用。     

浅析考试作弊行为的刑法规制——以上海市闵行区检察院办理的一起泄露国家秘密案件为视角

当前的司法实践中,主要以侵犯国家秘密类犯罪规制考试作弊行为,但是在"试题及答案的定密、以渎职罪名评价作弊行为、保密期限的确定、情节严重的认定、‘枪手’答案的性质"等问题上存在争议,已无法满足形势发展的需要。为了更准确、有效地依法打击考试作弊,应尽快出台考试法,并在刑法分则中单独设立"妨害考试罪",规制考试作弊行为。