Hiring Process A step-by-step breakdown of the hiring process to become a New Hampshire State Trooper. Step 1 – Submit An Application Step 2 – Physical Agility Test Step 3 – Written Exam Step 4 – Oral Board Step 5 – Polygraph Step 6 – Background Investigation Step 7 – Psychological Exam Step 8 – Medical Exam Step 9 – Interview with the Colonel