民政事務總署
During March 2018 Hong Kong by-elections, the returning officer Amy Chan Yuen-man had disqualified two localist candidates Ventus Lau and James Chan Kwok-keung. Lau visited the Home Affairs Department of Sha Tin District Office in person asking for a meeting with Chan. Lau had brought a can of "surströmming" and opened it in public. Lau said that he would like Chan to sense that the Hong Kong people are facing an entirely rotten election system. Lau launched an appeal to the Court, which ruled that Chan's decisions were not justified.