Garzon, who was arrested on Thursday, allegedly drove too fast along the curve where the train derailed, as seen in video of the incident above.
The court also suspended the 52-year-old's train driver's license and took his passport.
The crash killed at least 79 people and marked the nation's deadliest train accident in decades.
"I've f**ked up, I want to die,” Garzon reportedly told rescue workers as they rushed to pull bodies from the wreckage.
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