Serious question. Someone explain to me how they knew Ward was high at the time? My understanding is that he could have the devils lettuce in his system from usage weeks ago?
I believe the report stated that there was enough in his system to impair him. When it was consumed is irrelevant.
I'm not a toxicologist and never played one on TV, but I found this:
Abuse
The psychological effects of THC include an increased sense of well being or euphoria, relaxation, slowed psycho-motor response, an altered sense of time, short term memory impairment and impairment of multi-tasking performance.
THC Retention Time
Infrequent (less than twice/week) Smoking: When screening assays of 50 ng/mL or greater are used, urine samples will generally be positive for 1-3 days.
Regular (several times per week) Smoking: May result in urine specimens testing positive for 7-21 days.
Chronic (daily) Smoking: An individual who smokes marijuana daily for prolonged periods of time can test positive for 30 days or longer.
https://www.redwoodtoxicology.com/resources/drug_info/marijuana