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Homeland Security Bureau

Major Rolf Nelson

Homeland Security Bureau Maj. Rolf Nelson began his career with the Harris County Sheriff’s Office as a deputy in 1990. Over the course of his career, he has served in Detentions, Patrol, Accident Investigations, Homicide, Special Operations, Homeland Security, and the Training Academy.

Maj. Nelson holds a Master Peace Officer Certificate, is an Instructor, and a Firearms Instructor with the Texas Commission on Law Enforcement (TCOLE). He received his Bachelor’s Degree in Criminal Justice from Midwestern State University and is pursuing his Master’s in Criminal Justice Leadership and Management at Sam Houston State University. In 2012, he graduated from the prestigious FBI National Academy, Session No. 249. Maj. Nelson is also a proud veteran of the United States Army.

In addition to his military and law enforcement service, he took a leave of absence from 2005 – 2006 and accepted an assignment with the United States Department of State to consult and train Iraqi police forces in the Baghdad and Ninawa Provinces during the early years of the Iraq War.

Major Nelson and his wife Stefani have three wonderful children, Samantha, Kathryn, and Aiden.

About the Homeland Security Bureau

Homeland Security Provides CIKR Protection

The mission of the Homeland Security Bureau (HSB) is to enhance the safety of the people of Harris County should a natural and/or man-made catastrophe occur, through strategic sharing of federal, state, and local assets; sharing tactical capabilities in the air, afloat, and ashore with our regional partners; and proactively investigating nontraditional criminal activity as well as regional terrorism threats.

HSB divides its responsibilities among four sections within the Field Operations Division: Task Force, Maritime / Industrial, Air Support, and Tactical Response.

The Homeland Security Bureau is also responsible for the protection of critical infrastructure and key resources within Harris County from both domestic and foreign threats of terrorism. To accomplish this task, the Special Weapons and Tactics Unit (SWAT), Air Support Unit, Marine Unit, and Emergency Management Unit (EMU) stand equipped and ready to respond to any event.

Tactical Response Section

About Us

The Harris County Sheriff's Office, founded in 1837, is the largest sheriff's office in Texas and the third largest in the United States. The HCSO has over 4600 employees and 200 reservists dedicated to ensuring the safety of over 4.1 million residents who call Harris County home. Harris County encompasses 1788 square miles (1729 land) and includes forty-one incorporated municipalities.

Core Values

Merit and maintain the public’s trust.
Embrace and deliver professional service.
Protect our citizens with honor and courage.
Exemplify ethical conduct at all times.
Develop, encourage, and care for our Sheriff’s Office family.


1200 Baker Street
Houston, TX 77002
Emergency: 911
Non Emergency: (713) 221-6000
Inmate Information: (346) 286-1260
Information Line: (713) 755-6044

HCSO Employee Only.

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