Alcohol ingestion and age of death in hanging suicides

Retrospective review of 100 consecutive, nondecomposed cases of suicide because of hanging was conducted at Forensic Science SA, Australia. Alcohol was detected in 38 cases (38%). The percentage of victims who had ingested alcohol significantly decreased with age (r(2)=0.81), with alcohol detected in 57.1% of those aged ≤24 years, compared to 28.5% of those aged between 55 and 64 years, and 0% of those aged ≥65 years. A similar linear relationship between alcohol ingestion and age was found for cases with blood alcohol levels >0.05 g/100 mL (r(2)=0.73). The mean ages of those with detectable alcohol (35.2 years) levels >0.05 g/100 mL (35.1 years) and levels >0.1 g/100 mL (37.2 years) were all significantly less than in those with no detectable alcohol (44.4 years) (p<0.005, <0.005, <0.05 respectively). A clear relationship between alcohol ingestion and younger age was shown in hanging suicides.     

Sleep deprivation does not mimic alcohol intoxication on field sobriety testing

Previous research shows that sleep deprivation (SD) produces cognitive impairment similar to that caused by alcohol intoxication. Individual studies suggest that SD also causes deficits in motor skills that could be mistaken for intoxication. Consequently, SD often is used as a defense when an impaired driver is charged with driving while intoxicated. Twenty-nine adult subjects participated in two test sessions each, one after a full night's rest and the other after wakefulness of at least 24 h. Subjects consumed prescribed amounts of alcohol during each session. Law enforcement officers conducted field sobriety tests identical to those with which a driver would be assessed at roadside. Researchers also measured clinical responses of visual function and vital signs. The presence and number of validated impairment clues increase with increasing blood alcohol concentration but not with SD. Thus, SD does not affect motor skills in a manner that would lead an officer to conclude that the suspect is intoxicated, unless intoxication also is present.     

A case of fatal intoxication from metformin

A case of fatal intoxication from metformin is presented. The decedent was an obese 58-year-old-woman with type II diabetes, in whom severe lactic acidosis secondary to metformin accumulation was precipitated by acute renal failure. She had been on metformin 500 mg twice a day. Postmortem blood was deproteinated with acetonitrile, washed with dichloromethane, and the resulting supernatant injected into high-performance liquid chromatography system. Separation was performed on a analytical 125 x 4 mm i.d. RP-8 column. The wavelength was set at 235 nm. The mobile phase was acetonitrile (40%), sodium lauryl sulfate, and sodium dihydrogen phosphate adjusted to pH 5.1 (60%) at a flow rate of 1.0 mL/min. The concentration of metformin in postmortem blood was 77.3 microg/mL. The qualitative result was also confirmed by LC/APCI/MS/MS analysis.     

经济刑法中危险犯的立法问题研究

危险犯的采用及其在立法上的扩展是立法对风险社会的回应,也是经济犯罪立法的重要特征。通过对近年我国经济犯罪的刑事立法的分析,可以发现《刑法》在大量增设经济犯罪罪名的同时,经济犯罪的危险犯的成立范围也大大扩展。同时,出于法益保护的早期化,预防社会风险等方面的现实需要,在经济刑法中设立抽象危险犯颇有其必要性和合理性。基于维护经济秩序安全的需要,可以考虑在经济刑法中谨慎地规定过失危险犯。     

Intoxicated eyewitnesses: prevalence and procedures according to England’s police officers

Despite the apparent role alcohol plays in criminal offences, there is at present no evidence available as to the extent of the problem of intoxicated witnesses within England. To address this lack of research, police officers from seven constabularies completed an online survey addressing issues such as the prevalence of intoxicated witnesses, how officers determine intoxication, the procedures employed and their effectiveness. Officers indicated that intoxicated witnesses were a common, to very common, occurrence with most officers determining intoxication through physical symptoms and the witness’s own admission. In terms of interviewing witnesses, the majority of officers indicated that initial details were taken whilst witnesses were intoxicated, but the evidential interview was taken when sober. Officers also indicated that if the witness was intoxicated then the case was less likely to proceed to court and that officers viewed the witness as less accurate. These findings are considered from a criminal justice perspective and discussed in relation to future research.     

Determination of Nitrite in Whole Blood by High‐Performance Liquid Chromatography with Electrochemical Detection and a Case of Nitrite Poisoning

Although nitrite is widely used in meat processing, it is a major toxicity hazard to children and is responsible for the blue‐baby syndrome. A simple and effective method to determine nitrite in whole blood has been devised using ion chromatography with suppressed conductivity detection. The blood sample was deproteinized by adding acetonitrile and purified with mini‐cartridges to remove hydrophobic compounds, chloride ions, and metal ions. An aliquot of the filtrate was injected onto the ion chromatography. The retention time for nitrite was 13.8 min and the detection limit of nitrite in whole blood was 0.4 μmol/L. The calibration curve was linear (r² = 0.9999) over the concentration working range. The blood nitrite concentration of a victim who attempted suicide by ingesting sodium nitrite powder was determined using the present method. The basal levels for nitrite in human blood was determined with 7.1 ± 0.9 μmol/L (n = 12).     

贵州非法剧毒鼠药滥用情况调查及分析

为进一步了解贵州省非法鼠药销售及使用状况,对该省使用剧毒鼠药的情况进行了调查,对收集的样本进行了成分分析。调查结果为领导部门打击非法制售急性剧毒鼠药活动、防止恶性中毒事件和投毒杀人案件的发生提供第一手数据。     

防卫意思新探

我国刑法通说对防卫意思的理解标准过高,限制了正当防卫成立的范围,应予修正。犯罪的危害性是结果无价值与行为无价值、客观危害与主观违法意图的统一,防卫意思是阻却防卫行为行为无价值属性的主观正当化要素。防卫意思的内容是认识到防卫行为针对正在发生的不法侵害行为实施,并且没有主导的积极加害意图。防卫意思中不包括对不法侵害人损害结果的希望与追求。防卫意思可以和加害意图共存,过失行为中也可能有积极的防卫意思,可以肯定过失的正当防卫。     

Fatal Wrong‐Way Collisions on New Mexico’s Interstate Highways, 1990–2004

Abstract: Medical examiner files from 1990 through 2004 were reviewed to identify fatalities caused by drivers traveling the wrong direction on interstate highways and identify risk factors and prevention strategies. Other fatal nonpedestrian interstate motor vehicle crashes served as a comparison group. Data abstracted included decedent demographics, driver/passenger status, seatbelt use, blood alcohol concentration, weather and light at time of occurrence and types of vehicles involved. Of 1171, 79 (6.7%) interstate motor vehicle fatalities were because of drivers traveling against the posted direction in 49 crashes, with one to five fatalities per crash. Wrong‐way collisions were significantly more likely to occur during darkness (p < 0.0001) and involve legally intoxicated drivers (p < 0.0001). In 29/49 (60%) wrong‐way crashes, alcohol was a factor. Prevention strategies aimed at reducing the incidence of driving while intoxicated, as well as improved lighting and signage at ramps, could help reduce the occurrence of fatal wrong‐way collisions on interstates.