Paul Timm, PSP, is a board-certified Phy

Paul Timm, PSP, is a board-certified Physical Security Professional (PSP), president of RETA Security, Inc. and a nationally acclaimed expert in school security. In his article Effectively Managing Visitors, Paul shares some modern ideas on how to create a safer environment by managing the front door. http://www.retasecurity.com/apps/articles/default.asp?articleid=65453&columnid=

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