1. China’s top judicial, prosecutorial, and police authorities issued new sentencing standards for crimes involving fentanyl-related substances on Sept. 18, drawing a legal distinction between four approved medical drugs and other nonmedical variants [para. 1]. The guidelines, issued by the Supreme People’s Court, the Supreme People’s Procuratorate, and the Ministry of Public Security, take effect Wednesday and set drug-quantity thresholds for offenses including smuggling, trafficking, transporting, manufacturing, and illegally possessing fentanyl-related substances [para. 2]. The move comes as Beijing continues tightening its legal framework for fentanyl analogues, a class of synthetic opioids China placed under blanket controls in 2019 amid pressure from Washington over the role of Chinese-made chemicals in the U.S. opioid crisis [para. 3].
2. The new rules apply different thresholds depending on whether a substance has an approved medical use [para. 4]. For the four fentanyl-related drugs approved in China—fentanyl, alfentanil, remifentanil, and sufentanil—125 grams or more qualifies as a “large quantity,” while 25 to 125 grams is considered “relatively large” [para. 5]. For other, nonmedical fentanyl-related substances, authorities will use the heroin benchmarks: 50 grams or more is deemed a large quantity, and 10 to 50 grams is relatively large [para. 6]. The distinction is significant because penalties under China’s Criminal Law vary with both the offense and the quantity involved, with larger quantities carrying stiffer sentences; the standards cover trafficking and manufacturing under Article 347 and illegal possession under Article 348 [para. 7]. A nonmedical substance later approved for medical use will be subject to the lower thresholds applied to the four approved drugs [para. 8].
3. Fentanyl is an opioid painkiller up to 100 times as potent as morphine, first synthesized in 1960 and widely used for moderate to severe pain; the four approved medicines are available in China only as transdermal patches or injectables [para. 9]. Other fentanyl analogues generally have no established medical value, according to a Chinese government white paper published in March 2025; such substances are often abused with heroin, cocaine, and other illicit drugs, and overdoses can cause coma, respiratory depression, and death [para. 10]. China regulates narcotic and psychotropic substances separately based on medicinal use, with nonmedical substances defined as addictive or prone to abuse and treated as narcotics under the Anti-Drug Law and Criminal Law once listed [para. 11].
4. China began regulating fentanyl and alfentanil in 1996 and expanded controls as new analogues emerged [para. 12]. In December 2018, during a Buenos Aires meeting between Chinese leader Xi Jinping and then-U.S. President Donald Trump, China said it would place fentanyl-related substances under classwide controls; the country completed the legal process in 2019, effective May 1 of that year, and revised regulations in 2025 replaced the supplementary catalogue with a formal directory for nonmedical narcotic and psychotropic substances [para. 12][para. 13]. The latest guidelines cover 25 fentanyl-related substances listed before the 2019 classwide controls and later assigned to medicinal or nonmedical directories in 2025, as well as other substances covered by the 2019 announcement [para. 14].
5. The authorities said courts, prosecutors, and police should use criminal penalties to deter fentanyl-related offenses and prevent their spread; the guidelines also set standards for cases involving harboring drug offenders, concealing or transferring drugs and drug proceeds, inducing others to use drugs, providing premises for drug use, and illegally supplying narcotic medicines [para. 15]. The document provides rules on evidence collection, confiscation of illegal proceeds, jurisdiction, and determining whether a suspect knew the substance was a narcotic [para. 16]. If a suspect denies knowledge, authorities may establish it through accomplice testimony, witness accounts, shipping records, financial transactions, communications, and travel records [para. 17]; where such evidence is lacking, investigators may assess the method and circumstances of the offense, the suspect’s background, prior drug-related offenses, and ties to accomplices [para. 18].
6. Separately, the Supreme People’s Procuratorate and the Ministry of Public Security issued rules establishing criminal filing and prosecution thresholds for fentanyl-related offenses, also effective Wednesday [para. 19].
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