Meet Our Chief
Chief Daniel Acosta has been employed by the Sebastian Police Department for over 21 years. Prior to being appointed as the Chief of Police, he served as the Operations Captain, which included Road Patrol, the Criminal Investigations Division, the Communications Center, School Resource Officers, Community Oriented Policing Endeavor (COPE), the Special Response Team, and the Volunteer Program.
Chief Acosta obtained an Associate in Science degree for Criminal Justice from Brevard Community College (now Eastern Florida State College), a Bachelor of Science degree in Administration from Barry University, and earned a Master of Public Administration from Barry University. Chief Acosta is also a graduate of the University of Louisville’s Southern Police Institute Administrative Officers Course, class #140 among several other leadership courses.
Chief Acosta began his law enforcement career in 1995 when he attended the Police Academy in Brevard County and worked for the Fellsmere Police Department prior to being hired at Sebastian Police Department in 1999. His experience includes working as a Patrol Officer, Field Training Officer, Detective, tactical member of the Special Response Team, Hostage Negotiator, Patrol Corporal, Patrol Sergeant, Detective Sergeant, Support Services Commander and Operations Captain. He has also served as the background investigator for all positions hired within the Police Department and as a Computerized Voice Stress Analyzer (CVSA) operator, for the purposes of truth verification, for both investigative and employment selection purposes. He is currently the President of the Treasure Coast Chiefs of Police and Sheriff's Association and serves on the board of executives for the Substance Awareness Center of Indian River County, as well as, the Executive Roundtable of Indian River County.
Deputy Chief Greg Witt has been with the Sebastian Police Department since September 1985. He oversees Professional Standards, the Investigations Division and Code Enforcement. He is also responsible for Internal Affairs Investigations. Deputy Chief Witt has served as a Road Patrol Officer, Detective, Road Patrol Sergeant, Training and Special Operations Sergeant, Support Services Division Commander, and Operations Division Commander.
Deputy Chief Witt holds an Associate’s Degree in Criminal Justice from Indian River State College and a Bachelor’s Degree in Public Administration from Barry University. He also has the distinction of graduating from the FBI National Academy located in Quantico, Virginia in 2005. He is a graduate of the FBI Florida Executive Development Seminar (FEDS), the FBI Law Enforcement Executive Development Seminar (LEEDS#65) and the Florida Chief Executive Seminar (CES#49). He served as an area representative for the Florida Chapter of the FBINAA from 2006 until 2014. In 2014, he was elected to the Florida Chapter FBINAA Executive Board, which is a five year commitment, and served as the Florida Chapter President until 2019.
In 2009, Deputy Chief Witt was selected to sit on the board of directors for the South Eastern SWAT Association as the Florida representative, and served a two year commitment. He has also worked as an adjunct instructor for Indian River State College.
Criminal Investigations Lieutenant
Lieutenant Constantine Savvidis oversees the Criminal Investigations Division, Special Investigations Unit (SIU), the Records Unit, and is also the Department’s Training Coordinator. He has served in many capacities throughout his tenure with the Department.
Lieutenant Savvidis graduated from the FBI National Academy in 2014.
Lieutenant Robert Vafiades oversees the COPE Unit, Communications Division, School Resource, and the Volunteer Program. His experience includes working as a Patrol Officer, Field training Officer, member of the Special Response Team to include Hostage Negotiation team member, Detective assigned to the Multi-Agency Criminal Enforcement Unit (MACE), Patrol Corporal, and Patrol Sergeant.
Lieutenant Vafiades earned his Bachelor of Science degree with a major in Criminology from Florida State University.
Lieutenant Vafiades graduated from Sebastian River High School and moved to Tallahassee to attend college. After graduating, he attended and graduated from the Pat Thomas Law Enforcement Academy in 2003. He was hired by the Sebastian Police Department in 2004.