The Law Office of Scott Herndon is dedicated to providing comprehensive legal representation to individuals in Berkeley, the San Francisco Bay Area, and Hollywood who have been affected by the surreptitious or opportunistic administration of incapacitating substances, commonly known as “date rape drugs” or drug-facilitated sexual assault (DFSA). While drink spiking is a serious threat for people of all ages, it is especially threatening for young women between the ages of 14 and 30 (Al Otaibi 2023).
DFSA cases present serious challenges, requiring a deep understanding of the relevant medical, toxicological, and social landscapes. This webpage provides a general overview of recent research on these complex issues, including information on GHB, Ketamine, Rohypnol, and the use of drug test kits in college parties (such as fraternity or sorority settings), bars and nightclubs in Berkeley, Napa, San Francisco, Los Angeles, and throughout our state.
Of course, this webpage is intended for informational purposes only and does not constitute legal advice. Please consult with an attorney to discuss your specific situation regarding date rape drugs and drug-facilitated sexual assault (DFSA).
Substances like alcohol (ethanol), Gamma-hydroxybutyrate (GHB), ecstasy (MDMA), Ketamine, and Rohypnol (Flunitrazepam), are often implicated in cases of sexual assault and incapacitation. These drugs can cause a range of effects (Du Mont et al 2009; Busardo et al 2019), including but not limited to:
While GHB acts as a neurotransmitter and neuromodulator, primarily affecting GABA receptors in the brain and leading to rapid sedation and memory impairment, it is clear that potentially dangerous effects also result from exposure to other “party drug” substances, especially when combined with alcohol.
In fact, recent studies have emphasized that alcohol consumption itself is the most common thread across DFSA, with most of all reported cases of drink spiking involving alcohol consumption by the victim, and alcohol the most commonly used drug by perpetrators (Anderson et al, 2017; Ison et al, 2024). According to Caluzzi et al, in their 2025 article, “Alcohol and Legitimate Victimhood,” understanding the social, cultural, and psychological ways in which alcohol functions in our social lives is fundamental to protecting personhood, and advocating for survivors of DFSA. This is especially important in the context of expectations and violence towards young women. (See also, Prego-Meleiro et al’s “Increasing Awareness of the Severity of Female Victimization by Opportunistic Drug-Facilitated Sexual Assault,” Forensic Science International, 2020).
Abbey et al (2001) and Neilson et al (2023) report that among sexual assaults perpetrated by men, the assailant had been drinking in up to 73% of all sexual assaults. Alcohol consumption and gender-driven feelings of power and dominance were associated with sexual assault perpetration. This combination of intoxication, victim vulnerability, and a concomitant self-image of power, ultra-masculinity, and domination in the perpetrator are cause for significant an urgent concern.
Whether the substance is alcohol, a date-rape drug, or some combination of both, survivors of DFSA often describe feelings of shame, unfounded guilt, and justifiable fear in the aftermath of assault. As difficult as it may be, immediate or near-immediate contact with law enforcement, toxicological analysts, medical professionals, therapists, and skilled legal counsel is essential to protecting the survivor’s dignity, sense of self, and legal rights.
A 2021 study by Gallart-Mateu et al. examined the rapid metabolism of GHB in the human body, emphasizing the challenges and extreme time-sensitivity in detecting the drug in biological samples after a significant time lapse in date rape cases. The study highlights the need for timely toxicology testing to ensure accurate results in alleged drug-facilitated sexual assault cases. The rapid elimination of substances such as GHB from the body means that evidence must be collected quickly – ideally within 12-24 hours – to have the best chance of detection. This creates significant challenges for investigators and requires victims to seek immediate medical attention after a suspected date rape drug incident.
Of course, it is important to acknowledge that the presence of GHB in a sample does not automatically indicate malicious intent. GHB is also produced in the body and can be present at low levels in certain foods and beverages. Therefore, careful interpretation of toxicology results is crucial in DFSA investigations.
In response to rising concerns about date rape drugs, cities like San Francisco and Los Angeles have seen an increase in the proactive distribution of drug test kits in bars and nightclubs. However, while test kits can raise awareness, they are not foolproof, and may provide false negatives or positives for common date rape drugs like GHB and Ketamine. Comprehensive education and training alongside the distribution of these kits is essential.
Such use of drug test kits in bars and nightclubs raises complex legal questions. Establishments could face liability if they are seen as implicitly endorsing or encouraging drug use. Furthermore, the admissibility of test kit results in court may be challenged due to concerns about accuracy and reliability.
Importantly, drug test kits are not a substitute for vigilance and responsible behavior. A negative test kit result does not guarantee safety, as other substances may be present or the test may be inaccurate. Public health campaigns should focus on promoting consent, bystander intervention, and harm reduction strategies to prevent date rape drug incidents.
It is important to distinguish between opportunistic use by perpetrators and accidental exposure, both which may result in physical and psychological vulnerabilities. Caluzzi and Prego-Meleiro’s work explore the psychological, cultural and behavioral patterns associated with both scenarios. When evaluating DFSA cases, the entire spectrum of our institutions therefore need to assess the context of the event, survivor reporting, and corroborating evidence to establish how drug administration and opportunism may have enabled these assaults.
The Law Office of Scott Herndon works with leading forensic toxicologists and psychologists to carefully analyze the available evidence, including toxicology reports, witness statements, and behavioral patterns, in all of our date rape drug cases. We strive to reconstruct the events surrounding the alleged incident and provide a clear and compelling narrative for the court.
Establishing intent in date rape drug cases can be difficult, but is essential. Perpetrators often claim that the drug administration was accidental or consensual. This underscores the importance of a thorough investigation and the presentation of compelling circumstantial evidence in DFSA cases.
Cases involving date rape drugs often involve multiple legal issues, including:
In criminal cases, the prosecution must prove guilt beyond a reasonable doubt. In civil cases, our standard is lower – a preponderance of the evidence. This means that it may be possible to pursue a civil claim even if criminal charges are not filed or result in an acquittal in a date rape drug case.
At The Law Office of Scott Herndon, we understand the complexities of date rape drug cases and drug-facilitated sexual assault. We are committed to:
Our firm is dedicated to staying at the forefront of research and legal developments in this rapidly evolving field. We regularly attend conferences, consult with experts, and monitor relevant case law to ensure that we provide our clients with the most effective and informed representation in date rape drug and drug-facilitated sexual assault cases.
If you or someone you know has been affected by a date rape drug incident in the San Francisco Bay Area, please contact The Law Office of Scott Herndon for a confidential consultation. We are here to help you understand your legal rights and options and provide support after a drug-facilitated sexual assault.
