A federal appeals court today upheld a trial judge’s requirement that a man convicted of carjacking can’t enter San Francisco without a probation officer’s permission while he is on supervised release.

U.S. District Judge William Alsup of San Francisco imposed the restriction on Deandre Watson, 20, during Watson’s sentencing in 2008 for hijacking a rental car from a pregnant woman in the city in 2007.

Watson had pleaded guilty to the charge.

The judge sentenced him to six years in prison followed by three years of supervised release, with the condition that Watson could not come to San Francisco during the supervised release without permission of his probation officer.

Alsup said during the sentencing that his reason was that he believed if Watson returned to San Francisco during that period, “he’ll be back in trouble again in three days.”

In a presentencing report, probation officials had told the judge that Watson had a record of brushes with law enforcement as a juvenile and was a member of a San Francisco gang known as Eddy Rock.

Watson argued in the appeal that the restriction was a violation of his constitutional right to travel.

But a three-judge panel of the 9th U.S. Circuit Court of Appeals in San Francisco said the condition “is reasonably tied to the court’s stated aims of rehabilitation and deterrence and is no more restrictive than reasonably necessary to serve those purposes.”

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