The Delaware State Trooper's Association. Who are they? Why are they calling to sell products? Are they legitimate? Yes, the Delaware State's Trooper's Association is a legitimate organization for the support of our State Troopers. When they call you, they are not calling as a police officer and they cannot force you to listen to them or purchase items, but they are legitimate and they represent a good and worthy cause. The DSTA sports a slogan, "In God We Trust, All Others We Run NCIC". See also a related organization, the Association of Retired Delaware State Police.