Below is our online handbook dealing with security issues of special concern to synagogues and other Jewish institutions.
The ADL has advised congregations to increase their vigilance during these troubled times. We suggest that our synagogues be in touch with their local police departments and inform them of the schedule of services so that they can provide more visibility. Synagogue leaders should ask congregants not to gather outside the building during or after services.
Follow link for complete handbook:
http://www.ou.org/public/security/default.htm#fullp