INTEGRATED SECURITY SYSTEMS, INC.

ANNOUNCES

Joint Marketing AGREEMENT WITH CNI Manufacturing, LLC

(a subsidiary of Chickasaw NATION INDUSTRIES, INC.)

 Irving, Texas – July 19, 2006 – Integrated Security Systems, Inc. (OTCBB Symbol: IZZI) today announced the signing of a Joint Marketing Agreement with CNI Manufacturing , LLC, a business entity of Chickasaw Nation Industries, Inc. (CNI),  wholly owned by the Chickasaw Nation. CNI Manufacturing LLC is a federally chartered 8(a) tribal business corporation based in Ada, Oklahoma. The agreement covers a host of activities and relationships between ISSI and CNI Manufacturing LLC and, most importantly cooperative marketing, sales and manufacturing.

 “We feel that this relationship will be a considerable asset in the further development of our government contracting activities,” said William Lewis, Executive Vice President, Facilities and Products Sector, CNI. “Integrated Security Systems, Inc. has an outstanding portfolio of companies and security technologies which complement and reinforce our strategic objectives.”

 “This is a win-win for both our organizations,” states Jay Foersterling, President and CEO of Integrated Security Systems, Inc. “The CNI relationship gives us a much greater presence on the Federal scene in addition to significant operational advantages through the anticipated synergies between CNI and ISSI’s manufacturing operations,” according to Foersterling. “The relationship between our companies allows us to offer a full service approach to our channel partners as well as our customers, both governmental and private, while supporting the overall goals of both the Chickasaw Nation and the shareholders of ISSI,” added Foersterling.

 Under the agreement, ISSI and CNI will cooperatively market each other’s products and services.   CNI’s construction division is a natural choice for installing the crash-rated barricades of B&B ARMR, a subsidiary of ISSI.  While the construction division of CNI may utilize the Intelli-Site security integration platform as well as the perimeter security products of B&B ARMR in their design build applications.

 CNI may also fabricate products for the perimeter security and barrier business segments of ISSI. “This is a great opportunity that complements our growing manufacturing capabilities and enhances our delivery potential,” said Paul Matthews, COO/CTO of B&B ARMR.  

About ISSI

Headquartered in Irving, Texas, ISSI is a technology company that provides products and services for homeland security needs.  ISSI also designs, develops and markets safety equipment and security software to the commercial, industrial and governmental marketplaces.  ISSI’s Intelli-Site® provides users with a software solution that integrates existing subsystems from multiple vendors without incurring the additional costs associated with upgrades or replacement.  Intelli-Site® features a user-defined graphics interface that controls various security devices within one or multiple facilities.  ISSI is a leading provider of anti-terrorist barriers, traffic control and safety systems within the road and bridge and perimeter security gate industries.  ISSI designs, manufactures and distributes warning gates, lane changers, airport and navigational lighting and perimeter security gates and operators.  ISSI conducts its design, development, manufacturing and distribution activities through three wholly owned subsidiaries:  B&B ARMR, Intelli-Site, Inc. and DoorTek Corporation.  For more information, please visit www.integratedsecurity.com, www.bb-armr.com www.intelli-site.com, or www.doortek.com.

About B&B ARMR

B&B ARMR Corporation engineers and manufactures high security crash rated barriers and parking control equipment for commercial and institutional use throughout the world. B&B ARMR offers turnkey installation services for its security and control products and supplies parts and services for vehicle barriers manufactured by other companies. The company’s roots can be traced to 1925, and they assert a high profile customer list that includes the Pentagon, San Diego Naval Station, G.E. Headquarters, Hertz, FDA, FAA Headquarters, Department of State and several foreign embassies. For additional information, please visit www.bb-armr.com.

About CNI

Chickasaw Nation Industries, Inc. (CNI), incorporated on August 15, 1996, is a federally-chartered tribal corporation wholly owned by the Chickasaw Nation. CNI was created to promote the economic development and long-term financial viability of the Chickasaw Nation. Our purpose is realized and our objectives are achieved by the development, creation or acquisition of financially sound, well-managed business entities that comprise the divisional structure of the corporation. Our business capabilities are diverse and broad in scope. They include facilities support services, construction, information technologies, professional staffing, and manufacturing.

 CNI is committed to the highest degree of honesty and integrity in our relationships and business activities. This philosophy of honesty and integrity permeates our entire corporation and is the most vital part of our daily operating practices. While our vision is long-term, we recognize that our short-term success is dependent on how well we meet our daily responsibilities.

 Our first responsibility is to our customers. Without our customers we have no means of achieving our objectives. Through our business divisions we cater to a broad range of customers in both government and private industries. All products and services we provide are delivered with the utmost quality, at a competitive price and in a timely and professional manner.

This information contains certain forward-looking statements. It is important to note that ISSI's actual results could differ materially from those projected by such forward-looking statements. Important factors that could cause actual results to differ materially from those projected in the forward-looking statements include, but are not limited to, the following: operations may not improve as projected, new products may not be accepted by the marketplace as anticipated, or new products may take longer to develop than anticipated.

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