EX-23.3 3 markland_ex23-3.txt EXHIBIT 23.3 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM'S CONSENT We consent to the use in the Registration Statement of Markland Technologies, Inc., and Subsidiaries on Amendment No. 2 to Form SB-2 of our report dated September 15, 2003 relating to the consolidated financial statements of Markland Technologies, Inc. and Subsidiaries, which report includes (among other things) an explanatory paragraph to an uncertainty to the Company's ability to continue as a going concern, appearing in the Prospectus, which is a part of such Registration Statement, and to the use of our name as it appears under the caption "Experts". /s/Marcum & Kliegman llp Marcum & Kliegman llp June 17, 2004 New York, New York INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM'S CONSENT We consent to the use in the Registration Statement of Markland Technologies, Inc., ("the Company") on Amendment No. 2 to Form SB-2 filed on June 18, 2004 (the "Registration Statement") of our report dated February 25, 2004 relating to the financial statements of Science and Technology Research, Inc., appearing in the current report on Form 8-K filed with the Securities and Exchange Commission on March 23, 2004 File #000-28863, which is a part of such Registration Statement, and to the use of our name as it appears under the caption "Experts". /s/ Marcum & Kliegman llp Marcum & Kliegman llp New York, New York June 17, 2004