Peter Giacalone Hired

Mace Security International, Inc.
240 Gibraltar Road, Suite 220
Horsham, Pennsylvania 19004
954-449-1306

Horsham, PA, May 12, 2009 -- Mace Security International, Inc. ("Mace" or the "Company") (Nasdaq Global: MACE) today announced that it has hired Peter P. Giacalone to serve as the President of its new Security Services Division, which will include its newly acquired wholesale monitoring company, Mace CSSS, Inc. Mace CSSS, Inc. is a wholesale central monitoring station located in Anaheim, California purchased by Mace on April 30, 2009, as previously announced.

Mr. Giacalone will oversee all general management and sales and marketing efforts associated with the Mace Security Services Division and Mace CSSS, Inc. He will also develop Mace.s new commercial dealer program, which will support the customers of Mace.s monitoring services and surveillance products. Mr. Giacalone has over 30 years of combined experience in both the electronic security and wholesale monitoring industries. Mr. Giacalone is currently the Chairman of the Central Station Alarm Association.s Audio Verification Standards Committee and the Security Industry Association.s Two Way Audio Verification Standards Committee. He is also a frequent guest speaker at the International Security Conference. Mr. Giacalone was also the Chief Operating Officer of Criticom International/King Central-Monital.

"I am very excited to announce that we have hired Peter," said Dennis Raefield, Chief Executive Officer and President of Mace. "Peter is well-known in the security industry and is a great addition to Mace.s management team. Our wholesale central monitoring station is established with loyal customers and has great customer service. We are confident that Peter will be able to spearhead more aggressive growth in our central station, and develop a unique commercial dealer program that will allow us to cross-sell our monitoring services and surveillance products to all of our customers."

"The addition of a Security Services Division, and the acquisition of a wholesale monitoring platform continues our strategy to re-invigorate and expand our offerings and commitment to the security market," Mr. Raefield concluded.

About Mace
Mace Security International, Inc. is a manufacturer of personal defense and electronic surveillance products marketed under the famous brand name, Mace®. The Company also operates a Digital Media Marketing and e-commerce business. In addition, Mace owns and operates car washes, and has previously announced that it is exiting this segment of its business. The Company's remaining car washes are located in Texas. Mace's web site is http://mace.com.

Certain statements and information included in this press release constitute "forward-looking statements" within the meaning of the Federal Private Securities Litigation Reform Act of 1995. When used in this press release, the words or phrases "will likely result", "are expected to", "will continue", "is anticipated", "estimate", "projected", "intend to" or similar expressions are intended to identify "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements are subject to certain risks, known and unknown, and uncertainties, including but not limited to the final results of the independent investigation, the determination of the Panel with respect to the Company's request for an exception to Marketplace Rule 4310(c)(14), the impact on trading in the Company's common stock if the exception is not granted and the Company's common stock is delisted, economic conditions, dependence on management, dilution to shareholders, limited capital resources, the effects of weather on the demand for car care services, the effects of rapid growth on Mace and the ability of management to effectively respond to that growth, our ability to achieve operating synergies, our ability to compete against established competitors, regulatory matters, the effects of competition, and our ability to obtain additional financing. Such factors could materially adversely affect Mace's financial performance and could cause Mace's actual results for future periods to differ materially from any opinions or statements expressed within this press release. Additional discussion of factors that could cause actual results to differ materially from management's projections, forecasts, estimates and expectations are contained under the heading "Risk Factors" in Mace's SEC filings, including its registration statements and its periodic reports on Form 10-K and Form 10-Q. This press release should be read in conjunction with the financial statements and notes contained in Mace's annual reports on Form 10-K and quarterly reports on Form 10-Q.