In 1988, Mitch Claborn formed Cornerstone Detention Products Inc., a provider of services and engineered detention products. Specializing in engineering, design, distribution, installation and project management, the company recently acquired EO Integrated Systems Inc. in Washington, Mich., expanding Cornerstone’s product offerings with security electronics. In addition, Cornerstone announced four new appointments in the company. Floyd W. Hamilton, formally with CCC Group Inc., has been named vice president of operations. Hamilton’s career spans over 21 years with an extensive background in detention work. Eddie Pinnell, who also previously worked with CCC, is now the senior project manager, bringing 25 years of building construction experience to his new position. While Mike Root will now serve as vice president of preconstruction, Shannon Claborn has been appointed vice president in charge of the firm’s business development.