ADHD Student's Marijuana Seeds Incident Found to Be Manifestation of Disability

What Happened

A 13-year-old student with a specific learning disability (SLD) and ADHD was attending Innovation Middle School in San Diego Unified School District. He had been prescribed Vyvanse to manage his ADHD, and his behavior was generally well-controlled when he took his medication. However, for one to two weeks before May 22, 2009, he had secretly stopped taking his medication because he believed it was causing nighttime headaches. On that day, during a five-minute passing period between classes, he impulsively acted as a middleman in a single transaction where one student purchased marijuana seeds from another — walking students to each other and briefly holding a small amount of money he intended to pass along. He did not bring seeds to school, was not found with seeds, and had no history of drug use.

When the district initiated expulsion proceedings, it was required to hold a manifestation determination meeting to decide whether the behavior was caused by or had a direct and substantial relationship to the student's disability. At the June 5, 2009 IEP team meeting, the district concluded the behavior was not a manifestation of his disability, relying on a belief that he had been involved in more than one transaction, that his SLD (not ADHD) was his "primary" disability, and that an unreliable computerized discipline database showed few prior incidents. Parents disagreed and filed for due process. The ALJ ultimately found the district got the manifestation determination wrong — the behavior was caused by his unmedicated ADHD — but found no predetermination or procedural violations in how the meeting was conducted.

What the ALJ Found

The case had three issues, and the outcome was mixed:

Issue 1 — Manifestation (Student Won): The ALJ found that the student's conduct on May 22, 2009, was a manifestation of his ADHD. The evidence showed he engaged in a single impulsive act lasting less than five minutes, was not on his ADHD medication, and did not stop to think through the consequences of his actions. A forensic psychologist who interviewed the student found his account credible and testified that the behavior was directly caused by the student's unmedicated ADHD. The district's own witnesses acknowledged they would have been more inclined to find a manifestation if they had known it was a single brief incident and if they had understood what the drug test results actually proved (that the student had no medication in his system).

Issue 2 — Predetermination (District Won): The ALJ found no evidence that district staff entered the manifestation determination meeting with a predetermined outcome. An audio recording of the meeting confirmed that staff genuinely deliberated, and that the mother, her attorney, and her advocate were all given meaningful opportunity to participate and provide input.

Issue 3 — Procedural Violations (Partially Mixed): The ALJ found no procedural violations in how the meeting was conducted — parent input was heard and considered, and a good-faith effort was made to review records. However, the ALJ did note a significant legal error in the district's approach: the district improperly focused only on the student's "primary handicapping condition" (SLD) and was reluctant to consider ADHD as a basis for the manifestation analysis. The ALJ made clear that no legal authority supports limiting a manifestation determination to only a student's primary disability category.

What Was Ordered

1. The student's conduct on May 22, 2009, was formally declared a manifestation of his disability.
2. Within 20 days of the order, the district was required to correct the student's school records to reflect that the May 22, 2009 conduct was a manifestation of his ADHD.

Note: The student had already attended an expulsion hearing and was not expelled. He had transferred to another school in the district. No order was made regarding placement or compensatory education.

Why This Matters for Parents

1. All of your child's disabilities must be considered at a manifestation determination — not just the "primary" one. The district in this case tried to focus solely on the student's SLD and downplay his ADHD. The ALJ made clear this is legally wrong. If your child has multiple diagnoses, insist that the IEP team consider each disability when deciding whether behavior is related to disability.

2. Medication status can be critical evidence. The student's blood test proving he had not taken his ADHD medication on the day of the incident was a key piece of evidence. If your child was unmedicated at the time of an incident, gather documentation (pharmacy records, lab results, doctor's notes) and bring it to the manifestation determination meeting.

3. School discipline databases are often incomplete and should not be treated as definitive. In this case, the district relied on a computerized system (ZANGLE) that failed to record multiple behavioral incidents that parents knew about. If a school says "the records show no behavior problems," be prepared to provide your own documented history of incidents that were handled informally or never entered into the system.

4. Bring an expert if you can. The parents hired a forensic psychologist who had chaired manifestation determination meetings himself. His credible, detailed testimony about ADHD and impulsivity was a major reason the ALJ ruled in the student's favor on the key issue. If your district's team lacks the expertise to interpret evidence (like drug test results), an outside expert can fill that gap.

5. A single, brief, impulsive act looks very different from a planned course of conduct. The ALJ carefully analyzed whether this was one transaction or several. Because the evidence showed it was a single five-minute incident, not a planned scheme, the impulsivity argument held up. When advocating at a manifestation meeting, gather as much factual detail as possible about exactly what happened, when, and for how long — the specifics matter.