District Wins Manifestation Determination Appeal After Student Assaulted Staff Member

A 16-year-old student with speech/language impairment, ADHD, central auditory processing disorder, and borderline intellectual functioning was recommended for expulsion after physically assaulting a teacher during a 90-minute behavioral incident on May 3, 2022. Parents appealed the school's manifestation determination, arguing the conduct was caused by Student's disabilities and by the district's failure to implement his IEP. The ALJ upheld the district's determination, finding the conduct was planned rather than impulsive and was not caused by Student's disabilities, and that any IEP implementation failures were not directly linked to the specific charged conduct.

What Happened

Student was a 16-year-old entering tenth grade, eligible for special education under the primary category of speech and language impairment and the secondary category of other health impairment. Student's disabilities included expressive and receptive language deficits, central auditory processing disorder, borderline intellectual functioning, and ADHD. Student also had a behavior intervention plan (BIP) addressing physical aggression, verbal aggression, off-task behavior, and elopement. On May 3, 2022, a 90-minute behavioral incident unfolded at Atascadero High School near a construction site on campus. Student refused to leave the area, eloped, made verbal threats, and ultimately grabbed a teacher's pen and patted her buttocks, and later pushed her into a wall twice with his backpack while walking through a hallway. Atascadero suspended Student and recommended expulsion for assault and battery upon a school employee.

On May 19, 2022, the district held a manifestation determination meeting — a required process under federal law where the school, parents, and relevant IEP team members decide whether a student's misconduct was caused by their disability. The team determined that Student's conduct was not a manifestation of his disabilities and was not caused by any failure to implement his IEP. Parent disagreed and filed for an expedited due process hearing, arguing that Student's impulsivity, processing difficulties, and language deficits caused the behavior, and that the district's failure to provide the full 1,200 minutes per month of required BCBA consultation services contributed to the incident. The district rescinded the expulsion on the last day of the school year, but the hearing proceeded regardless.

What the ALJ Found

The ALJ ruled entirely in the district's favor on both issues. On the question of whether Student's conduct was caused by his disabilities, the ALJ found the evidence showed Student's behavior was planned, not impulsive. Student communicated functionally throughout the incident, could distinguish between preferred and non-preferred staff (being calm with one aide while targeting the teacher), and made deliberate choices — including verbalizing "Let's do this" between two physical assaults. The district's school psychologist and speech-language pathologist both testified persuasively that Student's disabilities did not cause the charged conduct. The ALJ gave little weight to Parent's expert, Dr. Ball, finding his opinions speculative, based on outdated information (his last contact with Student was in 2017), and focused on a version of events that differed from the charged conduct.

On the IEP implementation question, the ALJ acknowledged that Student proved the district did fail to provide the full 1,200 minutes per month of BCBA consultation for most months of the school year — a real violation. However, to prevail on this issue, Student needed to show that this shortfall was the direct cause of the specific charged conduct. Neither Parent nor Dr. Ball provided a concrete explanation of how the missed BCBA minutes led directly to Student patting the teacher's buttocks or pushing her into a wall. Because the connection was not established with sufficient specificity, this claim also failed.

The ALJ also declined to rule on procedural challenges Parent raised in the closing brief regarding the manifestation determination meeting itself, because those specific issues were never properly included in the original complaint or agreed-upon at the start of the hearing. The district had no notice of those claims, so they could not be decided.

What Was Ordered

The May 19, 2022 manifestation determination — that Student's conduct was not caused by or substantially related to his disabilities — was affirmed.
The May 19, 2022 manifestation determination — that any IEP implementation failure was not the direct cause of Student's conduct — was affirmed.
All relief requested by Student was denied.

Why This Matters for Parents

Proving a manifestation requires more than showing a disability exists — you must connect it to the specific conduct. It is not enough to show that your child has ADHD, processing difficulties, or a history of aggression. The law requires showing that the disability actually caused the specific behavior charged. General arguments that "all of my child's behaviors are caused by his disabilities" were explicitly rejected here.
IEP implementation failures must be directly tied to the incident — not just present in the background. The district in this case did fail to provide the full required BCBA minutes for most of the school year. But because Parent and her expert could not draw a clear, specific line between those missed minutes and the two physical incidents on May 3, the argument failed. If you are arguing IEP failures caused misconduct, you need expert testimony that explains how the failure led to the specific charged behavior.
Raise all of your procedural concerns in the original complaint — not just in closing arguments. Parent tried to argue that the manifestation determination meeting was procedurally flawed (that documents were not shared in advance, that relevant information was not reviewed). The ALJ refused to consider those arguments because they were not included in the original due process complaint. Once the hearing issues are set, you generally cannot add new ones at the end.
Expert witnesses must have current, direct knowledge of your child to be persuasive. Parent's expert had not evaluated Student since 2017, never observed him at school, never reviewed the incident with any witnesses, and relied on speculative language like "probably" and "may have." The district's experts had current, firsthand knowledge of Student. The quality and recency of expert testimony can determine the outcome of a case.

What Happened

What the ALJ Found

What Was Ordered

The May 19, 2022 manifestation determination — that Student's conduct was not caused by or substantially related to his disabilities — was affirmed.
The May 19, 2022 manifestation determination — that any IEP implementation failure was not the direct cause of Student's conduct — was affirmed.
All relief requested by Student was denied.

Why This Matters for Parents

Proving a manifestation requires more than showing a disability exists — you must connect it to the specific conduct. It is not enough to show that your child has ADHD, processing difficulties, or a history of aggression. The law requires showing that the disability actually caused the specific behavior charged. General arguments that "all of my child's behaviors are caused by his disabilities" were explicitly rejected here.
IEP implementation failures must be directly tied to the incident — not just present in the background. The district in this case did fail to provide the full required BCBA minutes for most of the school year. But because Parent and her expert could not draw a clear, specific line between those missed minutes and the two physical incidents on May 3, the argument failed. If you are arguing IEP failures caused misconduct, you need expert testimony that explains how the failure led to the specific charged behavior.
Raise all of your procedural concerns in the original complaint — not just in closing arguments. Parent tried to argue that the manifestation determination meeting was procedurally flawed (that documents were not shared in advance, that relevant information was not reviewed). The ALJ refused to consider those arguments because they were not included in the original due process complaint. Once the hearing issues are set, you generally cannot add new ones at the end.
Expert witnesses must have current, direct knowledge of your child to be persuasive. Parent's expert had not evaluated Student since 2017, never observed him at school, never reviewed the incident with any witnesses, and relied on speculative language like "probably" and "may have." The district's experts had current, firsthand knowledge of Student. The quality and recency of expert testimony can determine the outcome of a case.