About Us

OneFace Trainer

OneFace is owned and operated by Sean Grogan who is the chief instructor for the company. He is on his 11th year as a law enforcement officer and has almost 7 years experience as a narcotics detective in the state of New Jersey.  He is also a canine handler and certified gang professional. Sean Grogan had been studying body language and facial expressions before traveling to Europe for extensive training. After completing training in Europe, Sean Grogan earned his license through PEI. He is the first and currently the only Law Enforcement Officer in the United States to complete the training to become licensed through PEI. Sean Grogan also became a certified trainer by the Body Language Institute after receiving extensive training in Alexandria, Virginia. 

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