目的：探討酒精使用疾患者之飲酒與犯罪行為的關係。方法：以臺北市某精神科 專科教學醫院自民國 70 年 4 月至 85 年 12 月所有刑事鑑定個案中， 選取符合 DSM-IV 酒精依賴或酒精濫用診斷準則者 21 名為樣本，回溯分析其社會人口學背景、共患精神疾病 、犯罪行為性質與犯案時精神狀態。 結果：21 名個案的犯行中，以身犯最多，次為財犯； 犯行分項以殺人最多。再者，前科犯行與本次犯行的性質間，有密切的關係。以犯案時精神 狀態區分，在酒精中毒下之犯行以身犯最多，未達酒精中毒者的犯行以財犯最多，此一差異 已達統計學上的顯著意義。共患的精神科診斷方面，反社會人格違常、精神分裂症與酒精性 精神病皆佔有相當的比例。結論：犯案時精神狀態有否酒精中毒，可能是影響酒精使用疾患 者犯罪型態的重要因素。如何收集更多的資料，以確定犯案當時的精神狀態及其與犯行的關 係，應是此類司法精神鑑定的重點所在。

　　　　　Objective: To investigate the relationship between alcohol use disorder and criminal offense in criminal offenders referred for forensic psychiatric evaluation in Taiwan. Methods: The sample consisted of 21 criminal offenders with alcohol use disorder, who were referred to a psychiatric teaching hospital in Taipei for forensic psychiatric evaluation from 1981 to 1996. All subjects met the DSM-IV criteria for alcohol dependence or alcohol abuse. The socio-epidemiological characteristics, psychiatric co-morbidity, nature of the offense, and mental state at the time of the offense (MSO) were retrospectively analyzed. Results: As a whole, offenders were more likely to commit offenses against persons and, secondly, offenses against property. Homicide was the most frequently encountered offense. Among offenders with a prior criminal record, the index offense was frequently related to prior criminal offenses. The relation between MSO and the nature of the index offense was statistically significant (p=0.027). Alcohol-in-toxicated offenders were more likely to commit offenses against persons while non-alcohol-intoxicated offenders were more likely to commit offenses against property. The most frequently diagnosed psychiatric co-morbidity was antisocial personality disorder, followed by schizophrenia and alcoholic psychosis. Conclusion: The results of this study suggest that alcohol intoxication plays a significant role in shaping the nature of criminal offenses. There-fore, forensic psychiatric evaluation requires extensive comparison of alcohol use patterns as well as socio-epidemiologic characteristics, and psychiatric co-morbidity to clarify the relationship between MSO and the nature of a criminal offense.