Whether the public has demanded justice depends greatly on the specific context you're asking about. "Justice" is a broad term, and public opinion can vary widely depending on the issue at hand.

To give you a useful answer, I need more information. Please tell me:

• What specific situation or event are you asking about? (e.g., a particular crime, a political decision, a social issue)
• Which "public" are you referring to? (e.g., the general public in a specific country, a particular community, a specific group of people)

Once I have this information, I can search for news reports, surveys, and other sources to determine whether there has been a public demand for justice in that particular case.