John Inzinna worked for a Law-enforcement agency in NewJersey for over 20 years. During his time as a law enforcement officer Johnserved as one of his agencies lead firearms and medical instructor. During hislast six years with his agency John obtained his New Jersey PTC Police andPolice Firearms Instructor certification. John spent his final six yearsteaching at numerous police academies in New Jersey as well as conductingin-service training for his agency as well as neighboring departments.

To ensure he is always teaching the most relevant andup-to-date techniques John has trained with the top instructors in the UnitedStates such as Travis Haley (Haley Strategic Partners) John Lovell (WarriorPoet Society) and Field Craft Survival. Since 2019 John has attended over 400hours of training.