Jon Harley, defending Davison, said she had taken a cocktail of drink and drugs the night before following a break-up and was still intoxicated during the march.
Since being in prison she has managed to stay drug-free, he said.
Gary Wood, for Walton, said she was at the protest out of concern for her daughter.
“She hadn’t planned to be involved, in fact she is present in the street with her dog,” he said.
Judge Laird said the seriousness of the disorder, set against other outbreaks of trouble elsewhere in the country, meant neither sentence could be suspended, but he gave both credit for pleading guilty which reduced their jail terms.
Additional reporting by PA.
