4. The fact that conditions may be imposed as a matter of last resort during an event shall limit the extent to which conditions are imposed prior to assemblies in purported response to future contingencies. 5. Conditions may be imposed to protect the rights and freedoms of others.72 92. Prohibition shall only be used as a measure of last resort where no other less intrusive response would achieve the legitimate aim pursued. 1. The authorities shall promptly communicate a decision to prohibit an assembly to assembly organizers, together with a clear statement of the legal rationale for their decision. 2. Prompt resort to an independent court to determine de novo any dispute on such a matter between organizers and the state shall be available. 93. The burden rests on the authorities throughout the process to justify and substantiate any restrictions imposed. 72 Thus for example a large and noisy nighttime rally in a residential neighborhood may properly be limited, including through imposing restrictions on sound amplification equipment and lighting and visual effects.