The founder of LoJack, the system that helps recover stolen cars and electronics, has died at 78.

William R. Reagan, a former police commissioner in Medfield and selectman in the town, created the Canton company in 1986, using the technology behind his Stolen Vehicle Recovery System, which was designed to keep police officers safe as they pursued stolen vehicles.

‘‘Bill built the foundation that LoJack still stands on today, including our unique and direct integration with law enforcement, as well as the invention of a proven technology platform that has led to the recovery of nearly $4 billion in assets globally,’’ said LoJack’s current chief executive, Randy J. Ortiz in a statement.

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Currently, more than 1,800 law enforcement agencies use the company’s police tracking computers, and LoJack’s wireless system is used by 28 states and the District of Columbia, as well as 30 countries across the globe.

Reagan grew up locally, attending Boston Latin School and St. Sebastian’s School in Needham. He played hockey at both schools and continued his love of the sport as an adult, coaching the Medfield Youth Hockey Program.

Reagan is survived by his wife, Geneviee, their four children and 11 grandchildren.