For assault and battery, negligence and misfeasance claims for compensation you must start formal legal proceedings by filing a writ in a court within three years of sustaining the injury. If you are an infant or suffer a disability, the time period is six years. For a victim of crime application you must submit a claim form within two years of the crime.
If you do not file the claims within these deadlines you may lose your right to pursue compensation. Only in some very limited circumstances will courts extend the applicable time limit.