A teenager accused of preparing a terrorist attack on then-opposition leader Peter Dutton was not guilty due to his autism-related fixations on dark humour and explosives, a jury has heard.
The boy, who cannot be identified for legal reasons, has pleaded not guilty to acts in preparation for a terrorist attack and is facing trial in Brisbane Supreme Court.
He is accused of planning to use pipe bombs packed with nails to attack Liberal Party members and the Labour Day March in Brisbane to promote beliefs he shared with America's notorious Unabomber.
