Bail was set at $10,000 cash today for a former basketball coach accused of bringing a New York boy to Boston and sexually assaulting him here more than 30 years ago, Suffolk County District Attorney Daniel F. Conley said today.

In addition to setting the bail recommended by Assistant District Attorney Leora Joseph, Suffolk Superior Court Clerk Magistrate Connie Wong also imposed the recommended conditions of release: That ROBERT “BOB” OLIVA (D.O.B. 12/30/44) have no contact with the alleged victim or witnesses in the case and that he have no contact with any child under the age of 16 during the pendency of his case.

Wong set a tentative trial date of May 3, 2011.

Oliva, a resident of Lynbrook, New York, was formally charged today with two counts of rape of a child and one count of disseminating materials harmful to minors. The arraignment followed his March 25 indictment and what Conley called “an extensive investigation showing the power of our grand jury.”

“The facts of this case begin and end in 1976 here in Boston,” Joseph told the court today. “The defendant, a longtime family friend of the victim, brought the victim here to watch a Red Sox game at Fenway Park.”

Prosecutors allege that Oliva, then 32, sexually assaulted the boy, then 14, at the Sheraton Boston hotel twice between July 30 and Aug. 1, 1976. Prosecutors further allege that Oliva showed the boy pornography within the same time frame.

Conley spearheaded efforts to extend the statute of limitations on child sexual abuse after repeatedly learning of older cases that could not be prosecuted because – as in the Oliva case – the victims did not disclose their abuse to law enforcement until many years later.

In 2006, those efforts paid off when the statute of limitations on child sexual abuse was extended from 15 years to 27 years.

It was a different aspect of the law, however, that allowed prosecutors to pursue the charges in this case, Conley said. Any time a defendant spends outside of Massachusetts is not counted against the statute of limitations. When Oliva returned to New York after the alleged abuse, the clock on the statute of limitations stopped, allowing prosecutors to pursue criminal charges in the 34-year-old case.

The victim disclosed the abuse to Boston Police last year. Suffolk prosecutors undertook the grand jury investigation, which allows them to subpoena witnesses and compel sworn testimony.

“The survivors of child sexual abuse can take a message from this case,” Conley said. “The message is that the abuse is not your fault. Unwarranted feelings of shame, fear, and self-blame are weapons used by predators. This is a secret you don’t have to keep.”

Jillian Quigley is the district attorney’s victim-witness advocate assigned to the case. The defendant is represented by attorney Michael Doolin. The case will return to court on May 26 for a pre-trial conference.