Suppose Bob assaults Alice by punching and kicking her, as well as surrounding her with a bunch of colleagues with her back against a wall because she voiced political viewpoints which Bob and his associates find objectionable while they were trying to stage a demonstration.
Alice caught numerous of their strikes and blows on camera, even while they often tried to grab her phone out of her hand and demanded that she stop filming them (on public property).
Alice was so flustered on the day that she didn't have energy to go to the police but is now left with regrets.
How long does she have to file a proper police report of the assault?