Bureau of Investigations
Deputy Chief: Phan Ngo
The Bureau of Investigations is commanded by Deputy Chief Phan Ngo. Chief Ngo began his law enforcement career with the San Jose Police Department in1989.
Chief Ngo has worked in a wide range of assignments in patrol, investigation, and administration. His experience as an officer included assignments in Patrol, Violent Crimes Unit, Hostage Negotiations Team, and the Robbery Unit. As a Sergeant, Chief Ngo worked in Patrol, Violent Crimes Enforcement Team, and the Vice Unit.
Chief Ngo’s command experience included Patrol, Gang Investigations, and Internal Affairs. Since being promoted Deputy Chief in 2010, Chief Ngo has served as the Chief of the Bureau of Technical Services and the Bureau of Administration. He currently serves as the Chief of the Bureau of Investigations.
Chief Ngo has a Master’s degree in Criminal Justice from Boston University, and a Bachelor’s degree in Administration of Justice from San Jose State University. Chief Ngo is also a graduate of the Los Angeles Police Department Leadership Program and the Police Executive Research Forum’s (PERF) Senior Management Institute for Police.
Chief Ngo has been a Bay Area resident for over 38 years. In addition to his service with the police department, Chief Ngo enjoys spending time with his family and is dedicated to his favorite community causes. He is a Senior Advisor with Silicon Valley FACES, a non-profit organization whose mission is to create a community free of bias, bigotry, and violence. Chief Ngo is also a longtime supporter of the Law Enforcement Special Olympics Torch Run.
Investigations Division I
Captain: John Tepoorten
Captain John Tepoorten was hired January 5, 1986. He worked as an officer in the Bureau of Field Operations Patrol for three years when he was selected to Special Operations-MERGE Unit (Mobile Emergency Response Group and Equipment), which he worked for three years. After completing his assignment in MERGE he returned to BFO-Patrol for a year when he was accepted back into Special Operations as a member of the Canine Unit where he worked for seven years.
John was promoted to sergeant on August 20th, 2000. As a sergeant he supervised several patrol teams before being selected to the Bureau of Investigations as a supervisor in the Robbery Unit. John worked in the Robbery Unit for several years before becoming a Day Detective. In 2006 John was selected to supervise a team in VCET (Violent Crime Enforcement Team) which focused enforcement efforts on violent street gangs.
On February 11th, 2007 John was promoted to the rank of lieutenant. As a lieutenant John was assigned the following commands: Bureau of Field Operations Patrol/Southern Division swing-shift watch commander, Bureau of Investigations-Assaults/Juvenile/Missing Persons Unit, and Bureau of Field Operations-MERGE/Bomb Squad/Canine and Horse Mounted Units.
John was promoted to the rank of captain on November 11th, 2011 and assigned to the Bureau of Investigations. He is currently the Bureau of Investigations Division I Commander and responsible for the Homicide, Auto Theft, Family Violence, Gang Investigations and Sexual Assaults Units.
Investigations Division II
Captain: Mark Bustillos
Mark Bustillos joined the San Jose Police Department in 1992. After several years in the patrol divisions, Mark served in the Special Operations Division - Narcotic Enforcement Team, M.E.R.G.E. (SWAT), and Field Training Unit. In 2002, he was promoted to the rank of Sergeant, serving as a supervisor in patrol, and later in the Office of the Chief – Internal Affairs Unit and the Special Investigations – Criminal Intelligence Unit. Mark was promoted to the rank of Lieutenant in 2008 and was assigned as a Patrol Watch Commander in the Southern, Western and Central Divisions. He was later the commander of the Personnel Unit in the Bureau of Administration. In 2011, Mark was promoted to the rank of captain and was assigned as Division Commander for the Foothill Division. In January 2013 Mark was assigned to command the Bureau of Investigations, Division II.
Mark was born and raised in San Jose, and he joined the SJPD because he wanted to give back to the community that was his home. He has a firsthand understanding and appreciation of San Jose, its people, businesses, and public schools in creating a thriving community. As a leader, he believes strongly in collaboration and inclusiveness, both internally and externally, and the essential role this plays in building organizational and community confidence in the services performed by the men and women of the police department.
Mark earned his Bachelor’s Degree in International Relations at Stanford University and Master’s Degree in Public Policy from the Claremont Graduate School.