Uganda Bans Activist Group

The Ugandan government has banned activist group "Action for Change"  because they have not scheduled their protests with the police. This group is demonstrating against corruption and costs of living. The government also claims this group has been using violence during its "walk to work" protests. This is slightly ridiculous. Even if the protests were unscheduled, shouldn't that simple ban any protests until further notice from this particular group. Shouldn't that entitle that the leaders must inform the police of their intentions? People should have the right to peacefully assemble and speak out against government policies. While it is good to avoid violence, it is important that people's rights are honored.