Gavin de Becker (born October 26, 1954)  is a specialist in security issues, primarily for governments, large corporations, and celebrities.
He is the designer of the MOSAIC Threat Assessment Systems used to screen threats to Justices of the Supreme Court of the United States, members of United States Congress, and senior officials of the Central Intelligence Agency. Along with the United States Marshals Service, he co-designed the MOSAIC system currently used for assessing all threats to Federal Judges and prosecutors.
He was twice appointed to the President's Advisory Board at the United States Department of Justice, and he served two terms on the Governor's Advisory Board at the California Department of Mental Health.
De Becker is the author of three best-selling books, The Gift of Fear, Protecting the Gift, and Fear Less. The Gift of Fear describes stalking cases where men bother women and is designed primarily to help women who feel threatened by men. He also describes how employers should handle employees who need to be terminated to prevent confrontations. He also deals with issues such as child sexual abuse. He is Senior Fellow at the UCLA School of Public Affairs and a Senior Advisor to the Rand Corporation on public safety and justice matters.
He was the owner of a Los Angeles house at which George Harrison died of cancer in November 2001.
His latest book, Just 2 Seconds, has been described as the essential guide for protectors of at-risk people and includes 5 lessons for people charged with protecting others. It also includes summaries of incidents and near-incidents from the last several decades for training and analysis. Co-authors of the book are Tom Taylor and Jeff Marquart.
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