Activists said on Saturday they plan to stage a demonstration next weekend to call on the Secretary for Justice's resignation.
The Civil Human Rights Front said they have not yet received a letter of no objection from the police, but they plan to march on February 11 from Wan Chai to the Department of Justice's offices in Central.
They say Justice Secretary Teresa Cheng should resign over her failure to disclose the illegal structures at properties that she owns, as this raises questions about her honesty and credibility.
They also accused Cheng of pressuring election officials into barring some individuals from standing as candidates in next month's Legislative Council by-elections because of their political beliefs.
The League of Social Democrats' disqualified lawmaker Leung Kwok-hung described Cheng as Hong Kong's "Secretary of Injustice".
He said he doesn’t expect the government to act to remove Cheng as a result of the protest, but hopes the demonstration will mobilise people to express their anger.
He added that if Cheng doesn't resign, then the Chief Executive Carrie Lam should be held responsible and she should step down.