Superior Court Judge Aviva K. Bobb signed the restraining order after a brief hearing Wednesday morning.
In January, Jamie Spears sought protection on his daughter's behalf against Ghalib, her former business manager and an attorney.
Court documents contend the trio have tried to undermine the singer's conservatorship, which was established after a series of high-profile incidents of erratic behavior.
Jamie Spears' attorney told the judge that Ghalib hadn't filed any objections to a protective order being issued. Neither Ghalib nor his attorney have appeared at previous hearings.
The restraining orders are in effect until March 17, 2012.
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