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Mike DIggs
Founder of the San Diego National Church Safety + Security Conference
Co-Sector Chief – Faith Based Facilities, InfraGard
Director of Safety, Rock Church 

Born and raised in Washington D.C., Mike attended college at Harvard University School of Extension, Cambridge Ma 1981-1986. Mike worked 18 years in Law Enforcement with the Montgomery County Police Department in Maryland. While working for the Montgomery County Police, he held a variety of assignments including serving as a 

Mike Diggs

member on several federal task forces. He retired as a Detective Corporal-Supervisor in the department's Major Crimes Division in 2004 after receiving the “Blue Heart” medal for line of duty injury.


Mike then began a second career as an investigator for Homeland Security in Washington D.C., transferring to the San Diego office in 2006. In early 2007 Mike transitioned to the Director of Safety at the Rock Church. At the Rock, San Diego’s largest church and the 19th fastest growing church in the nation, Mike built on the existing 15-member volunteer security program and partially designed and fully implemented the physical security aspects of the Rock’s 218,000 square ft. Point Loma campus which houses the K-12 Rock Academy and 3,500 seat worship facility. He also has oversight of Traffic safety & Community Relations, and is extremely thankful for his small but mighty team of 5 full time staffers. He has been a Co-Sector Chief of FBI InfraGard, San Diego Chapter, Faith Based Sector for the past 6 years. In June 2010, Mike founded and launched the very first National Church Safety & Security Conference that continues to operate in June each year.


The Rock Church has an average weekly attendance of 15,000 across five campus locations. There are 2 retail locations, over 14 microsite locations, an on-line campus, a continuing education school and a live broadcast of all Sunday services with nearly 30,000 viewers around the world. With the number of attendees and locations, the Rock regularly handles its share of security concerns and challenges. There are currently nearly 400 Safety and Traffic Safety volunteer Team Members that currently serve at the five campuses for all four Sunday services and special events.

Mark Crofton
Mark Crofton
Principle, Onsite.LTD


Mark Crofton served the citizens of the State of California as a member of the California Highway patrol for 29 years. During his tenure, he served as an administrator for a CHP Area office that encompasses over 400 square miles and 130 officers and staff.  Sgt. Crofton served as the Academic Supervisor at the California Highway Patrol Academy in Sacramento Ca, where, in addition to his administrative duties, taught all facets of current criminal law and search and seizure practice as it applies to law enforcement. Over his 29-year career, he was assigned to both urban and rural areas.  Was a Division Training

Officer and conducted numerous Protective Service and Dignitary Protection Details as he served throughout the State. Mark has extensive experience in police tactics and the National Incident Management System (NIMS/SEMS) systems and teaches and supports training for government agencies on a regular basis.


Mark also served as a Regional Director for Promise Keepers “in the early years (94-99)” and has coached High School sports “on and off” for 15 years. He is active with several youth organizations and is an avid supporter of Christian Camping, serving every summer to facilitate Christian camping in San Diego, Ca.


Mark and his wife Julie currently attend the Torrey Pines Church in San Diego California. Mark and Julie have three grown sons, and have been married for 29 years. Mark is a graduate of Biola University with a degree in Christian Education.   Mark regularly speaks to Men's Groups encouraging men to do what “The Book says" and “Stay the Course”. Additionally, Mark has addressed the San Diego National Church Safety & Security Conference presenting a segment on "Who We Are As a Church" and “Why We Are Called to Serve In a Security Capacity" at the past three Conferences. Mark’s desire is that you will be blessed by biblical insights and his passion for service in the church, and will change the way you think of “Church Security” in the future.

Jerry Langford
Jerry Langford
Morning Show Host, KDSW 88.9 FM



Jerry has been a Christian broadcaster for nearly 30 years and is an active participant in conferences, concerts, festivals and outreach events.  Formerly an afternoon talk show host, he went on to work for the Salem Radio Network as their National News and Public Affairs Director.  He later accepted the role as Executive Director for "Compassion Radio," an international daily radio program.  He has worked the last 13 years with Calvary Chapel's K-Wave, and Southern California's KSDW. 

In addition to his radio and community work, Jerry entertains thousands as a professional Illusionist and travels around the country performing for churches and corporations. He is also an avid tournament poker player and demolition derby driver, though, he insists, not at the same time.  He and his wife of nearly 40 years reside in Orange County and enjoy being grandparents all the time.

Carl Chinn
Carl Chinn
President, Faith Based Security Network

Carl Chinn is an authority on security operations and readiness in faith-based organizations (primarily churches). He speaks to law-enforcement, security professionals and ministry leaders. His website ( is used by ministries and law enforcement to develop and improve operational resilience and interfaith / interagency cooperation. His book “Evil Invades Sanctuary is available on his website and at


Chinn is the President of the Faith Based Security Network (FBSN). The FBSN is a public charity committed to improving the safety of American communities by inspiring faith based organizations to be intentional about the security of their people.

Carl Chinn
Faith Based Security Network, Inc.
PO Box 62131
Colorado Springs, CO


Chris Mefford
Chris Mefford
Chief Marketing Officer, Rock Church


Chris Mefford is Chief Marketing Officer at Rock Church, and the former VP of Ramsey Event Productions; a company founded and lead by radio host and New York Times #1 best-selling author for both business and personal finance, Dave Ramsey, and author of the book Hiring, Firing and Creating an Amazing Team Culture for Pastors in a Hurry.

In his role at Rock Church he oversees of all the advertising and marketing, including public relations, print, branding, digital marketing and social media, where he has an

unmatched ability in developing strategies to measure advertising and marketing success.


Chris has coached leaders from businesses and non-profit organizations as part of EntreLeadership business programs and events nationwide. He offered his expertise and insight to assist senior executives and pastors.


Chris’ turn-around abilities played a part in helping Ramsey Solutions earn recognition as one of Nashville Business Journal's "Best Places to Work" for eight consecutive years.


Chris obtained a Master’s in Business (MBA) in 2006 and is married with two kids.


Zap Martin
Zap Martin PRT Leader.png
Zap Martin
Church Security Consultant

Lee Zap Martin (Zap) has been involved in law enforcement training for over 15 years. He has worked for the Riverside Police Department, San Diego Police Department and Federal Bureau of Investigation in the Criminal Investigative Unit where he worked high profile financial crimes cases. In addition, Zap's law enforcement experience includes working background investigations, the hostage/crisis negotiation team, SWAT and narcotics teams.


Zap's educational background is in Economics (undergraduate) and Business (graduate). He has taught at the University of California, San Diego, the University of San Diego and frequently conducts law enforcement trainings at police academy's statewide. He is Master Instructor for California Peace Officer Standards and Training (POST) and currently does training throughout California. Zap is the chief consultant of PRT Leader, Inc., a California Corporation.

Robin Dreeke
Robin Dreeke
CEO, People Formula

Robin is a best-selling author, professional speaker, trainer, facilitator, and retired FBI Special Agent and Chief of the Counterintelligence Behavioral Analysis Program. Robin has taken his life's work of recruiting spies and broken down the art of leadership, communication, and relationship building into Five Steps to TRUST and Six Signs of who you can TRUST. Since 2010, Robin has been working with large corporations as well as small companies in every aspect of their business. Whether it is newly promoted leaders, executives, sales teams, or customer relations, Robin has crafted his People Formula for quick results and maximum success. 

Chief David Nisleit
Chief Nisleit's Command Photo.jpg
Chief David Nisleit
Chief of Police, San Diego Police Department

 David Nisleit was promoted to the City of San Diego’s 35th Chief of Police on March 2, 2018. Chief Nisleit oversees the eighth largest police department in the nation. He is a native San Diegan and grew up in the Rolando Community. Chief Nisleit is a graduate of the University of Redlands, Master’s Degree in Business Management. In December of 2014, Chief Nisleit graduated from the FBI National Academy, FBINA #258. 

Chief Nisleit comes from a law enforcement family and has a legacy with the San Diego Police Department. His father, Randy Nisleit, served over 35 years with the Department and retired as a Captain in 1999. Following in his father’s footsteps, Chief Nisleit began his career with the San Diego Police Department in February 1988. His son, Ryan Nisleit, recently graduated from the San Diego Police Academy and is currently a patrol officer. 

David has worked many of the Department's patrol commands and has extensive investigative experience. His prior assignments include Assistant Chief of Patrol Operations, Watch Commanders Office, Headquarters Front Counter, Homeless Outreach Team, Special Operations, Investigations II (Robbery, Gangs, and Homicide), field lieutenant, SWAT, Special Events, Narcotic Team 10, Sex Crimes, and Internal Affairs. David served as a liaison to the Downtown Redevelopment Agency, Crime Commission, Community Relations Officers, LEAPS, Police Historical Association, Labor Relations, Gang Commission, San Diego Police Foundation, and the Chief’s Community Advisory Board. 

Chief Nisleit has assisted in the security planning for several large events in San Diego such as the Super Bowl, Comic-Con, Rock n Roll Marathon, Balboa Park December Nights, LGBT Pride, International Association Chiefs of Police Convention, yearly holiday events and other major conferences. 

Chief Nisleit is a member of the San Diego County Police Chiefs’ and Sheriff’s Association, Major Cities Chiefs Association, Police Executive Research Forum, International Association of Chiefs of Police, STAR/PAL, SANDAG, and the SWAT Association. He has received numerous awards and citations throughout his career which has included a Congressional Recognition in 2008. 

Chief Nisleit is also a professor of criminal justice at the University of San Diego and Alliant University. 

In his spare time, Chief Nisleit enjoys running, cycling, golf and spending time with his wife, three kids, and grandson. 

Brandon Willenberg
Willenberg J.D.
BTW Law Group

Prior to establishing BTW Law Group, Brandon served as General Counsel and Director of Human Resources at a large non-profit corporation, with over 270 employees, multiple locations, and an 8-figure operating budget, overseeing all legal, employment/human resources, intellectual property, risk, and insurance matters.  Prior to his work as General Counsel, Brandon worked at Am Law 100 law firms representing clients ranging from start-ups to Fortune 500 companies, where he focused on counseling and litigation matters in the areas of employment law, trade secrets, employee mobility, commercial contracts and disputes, and insurance.

Brandon graduated from law school with honors and went on to serve as law clerk to the Honorable James F. Stiven (Ret.) at the United States District Court for the Southern District of California.  He has practiced law for over 15 years in California and is licensed in Nevada, as well.

Having served clients as both outside and in-house counsel, Brandon fully understands and appreciates the operational, legal, risk and personnel challenges that for-profit and non-profit organizations face.

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