Oleson was placed under arrest for misdemeanor driving under the influence of drugs (marijuana), possession of marijuana on school grounds and concealing evidence (hash oil) to prevent its discovery.

The driver of the suspect vehicle was identified as 31-year-old Kelseyville resident Athina Marlene Cook. Emergency medical units from the Lakeport Fire Protection District (LFPD) evaluated Cook at the scene and determined that she did not have any injuries requiring her to be transported to a hospital. Officers evaluated Cook, determined that she was intoxicated and placed her under arrest. During the investigation, officers determined that Cook was currently on probation for a prior drunk driving conviction.