What triggers the handling of a long-term missing person case?

The handling of a long-term missing person case is typically triggered after 30 days. This timeframe is important because initial investigations should focus on gathering immediate leads and evidence, but as time progresses, the case shifts into a long-term investigation mode where different strategies may be employed. After 30 days, authorities often reassess the case, initiate different investigative techniques, and possibly engage additional resources to focus on the long-term aspects of locating the missing individual. This change in approach reflects an understanding of the dynamics involved in missing person cases, allowing law enforcement to adapt to the evolving nature of the investigation as time passes.