After a year if no court date is set are all arrest charges dropped?

In most jurisdictions, if no court date is set within a year, it does not automatically mean all arrest charges are dropped. The specific rules can vary based on local laws and the nature of the charges. In some cases, charges may be dismissed if they are not prosecuted within a certain timeframe, but this is not universal. It's advisable to consult a legal professional for guidance regarding specific cases and local laws.