Impairment Consultants, LLC is a consulting firm founded by Brett J. Murphy APN, PMHNP-BC. Mr. Murphy is a qualified and experienced nurse-practitioner in the State of New Jersey offering consultation, review & analysis, report preparation, and testimony in legal cases involving Driving While Intoxicated (“DWI”), Refusal to Submit Samples of Breath (“Refusal”) and Driving Under the Influence of Drugs/Medications (“DUID”) and other legal cases involving medical, pharmacological, toxicological, mental and physical health conditions, and other matters in which the firm’s advice and assistance may be sought by individuals and professionals in the legal field, who represent clients facing charges involving these types of issues.