"Psychoactive effects" refers to the changes or alterations in the brain and mind that occur when a substance is ingested, leading to changes in perception, mood, consciousness, or behavior. Full definition
Here's the point made endlessly by scientists or anyone with even a passing understanding of pharmacology: you can not test the causal mechanism for psychoactive effect in court. (politics.co.uk)
Both the low THC content and the high CBD / THC ratio make industrial hemp unsuitable for producing psychoactive effects when smoked or eaten. (votehemp.com)
Products such as hemp seed and oil — which allow only a harmless, trace amount of THC to enter the human body and do not cause psychoactive effects — were not what Congress was seeking to ban. (votehemp.com)