Does a probationer have a "special needs" that justify warrantless searches on less than probable cause?

The state's operation of a probation system implicates "special needs" which justify warrantless searches on less than probable cause. (Griffin v. Wisconsin, supra, 483 U.S. at pp. 873-874, 107 S.Ct. at pp. 3168-3169.) The protection against invasions of privacy offered by the warrant and probable cause requirements of the Fourth Amendment which probationers would otherwise enjoy is outweighed by the government's legitimate interests in rehabilitating probationers and protecting the public from further victimization. ³ (Id. at pp. 874-875, 107 S.Ct. at pp. 3168-3169.)