The New Hampshire Petition for Involuntary Admission is a legal document used in the state of New Hampshire to initiate the involuntary hospitalization of individuals who are deemed to be a danger to themselves or to others, and who are unable to seek voluntary hospitalization. There are two main types of New Hampshire Petition for Involuntary Admission: Emergency Petitions and Preliminary Petitions. Emergency Petitions are used when it is believed that an individual's mental health has deteriorated to a point where they are an imminent risk of harm to themselves or to others. An Emergency Petition can be filed by any person, including family members or medical professionals. Preliminary Petitions are used when it is believed that an individual's mental health is in a state of decline, but not at a point where an Emergency Petition is necessary. A Preliminary Petition can only be filed by an individual's physician. Once a Petition for Involuntary Admission has been submitted, it will be reviewed by a judge. If the judge finds that the individual in question meets the criteria for involuntary hospitalization, they will issue an Order for Involuntary Hospitalization, which will authorize the individual to be involuntarily hospitalized.