BBC NEWS Scottish Socialist MSP Rosie Kane has been fined £150 following her arrest at the Faslane naval base on the Clyde.
She was charged with breach of the peace, resisting arrest and blocking the highway during a protest against Trident nuclear submarines in August.
After the case at Helensburgh Sheriff Court, the Glasgow MSP said: "Trident is illegal, immoral and wrong.
"We should use the vast sums of money these weapons swallow up to educate our young and fund the health service."
The sheriff said that if Ms Kane refused to pay the fine she would impose a supervised attendance order.
