There was no disruption. There were no slogans being shouted. I watched the news clip live. The placard was held behind him. he moved sideways to prevent the placard being shown on TV. When the clip cut to George Alagiah in teh studio for his question, and came back to Nick Robinson the placard had gone as the cameraman changed his angle. A few secs later the placard reappeared as the holder readjusted his position behind Nick. No faces were seen, no slogans and no disruption.
Nick Robinson tore up the placard after the news item was over.
That was destruction of property.