Tim Donaghy was an NBA referee from 1994 to 2007 who was caught betting on games he officiated due to a gambling addiction and immense debt. An FBI investigation in 2007 confirmed Donaghy's involvement in a gambling scheme with the mob where he made calls that affected point spreads. He pleaded guilty to two federal charges, was sentenced to 15 months in prison followed by supervised release, and brought shame on himself and the profession. The NBA implemented enhanced gambling regulations in the aftermath of the scandal.