Joe Paterno appears to have played a greater role than previously known in Penn State’s handling of a 2001 report that Jerry Sandusky had sexually assaulted a boy in a university shower, according to a person with knowledge of aspects of an independent investigation of the Sandusky scandal.


E-mail correspondence among senior Penn State officials suggests that Paterno influenced the university’s decision not to formally report the accusation against Sandusky to the child welfare authorities, the person said. The university’s failure to alert the police or child welfare authorities in 2001 has been an issue at the center of the explosive scandal — having led to criminal charges against two senior administrators and the firing of Paterno last fall.


The university’s much maligned handling of the 2001 assault began when Mike McQueary, a graduate assistant in Paterno’s football program, told Paterno that he had seen Sandusky assaulting a boy of about 10 in the football building showers. McQueary has testified several times that he made clear to Paterno, and later to university officials, that what he had seen Sandusky doing to the child was terrible and explicitly sexual in nature.


To date, the public understanding of Paterno’s subsequent actions has been that he relayed McQueary’s account to the university’s athletic director and then had no further involvement in the matter.


But the e-mails uncovered by investigators working for Louis J. Freeh, the former F.B.I. director leading an independent investigation ordered by the university’s board of trustees, suggest that the question of what to do about McQueary’s report was extensively debated by university officials. Those officials, the e-mails show, included the university’s president, Graham B. Spanier; the athletic director, Tim Curley; the official in charge of the campus police, Gary Schultz; and Paterno.


The existence of the e-mail correspondence was first reported by CNN. The person familiar with aspects of the Freeh investigation would not be identified because the investigation is continuing and no one is authorized to speak about it.


The Penn State e-mails, according to the person with knowledge of the Freeh investigation, indicate that Spanier, Curley and Schultz seemed at one point to favor reporting the assault to the state child welfare authorities, recognizing that if they did not, they could later be vulnerable to charges that they had failed to act.


But in one e-mail, Curley wrote that after talking to Paterno, he no longer wanted to go forward with that plan.


In the end, the university told no one other than officials with Second Mile, the charity for disadvantaged youngsters founded by Sandusky.


The e-mails suggest that the officials decided that Sandusky could be dealt with by barring him from taking children onto the campus and encouraging him to seek professional help.


Not reporting the accusation to the authorities, the men determined, was the more “humane” way to deal with Sandusky, according to the e-mails.


Curley and Schultz were indicted last fall on charges of failing to report the assault to the police and child welfare authorities, and then lying about their conduct under oath before a grand jury. Curley and Schultz, through their lawyers, have insisted that they were never told of the graphic nature of the assault in the showers, saying they were under the impression that it had amounted to little more than “horsing around.”


Lawyers for Curley and Schultz, contacted about the e-mails, issued a statement saying in part: “For Curley, Schultz, Spanier and Paterno, the responsible and ‘humane’ thing to do” in 2001 “was to carefully and responsibly assess the best way to handle vague but troubling allegations. Faced with tough situations, good people try to do their best to make the right decisions.”


Spanier, who resigned as Penn State’s president in November, declined to comment when reached by phone on Saturday.


Paterno died of lung cancer in January. When reached by phone Saturday, his son Jay Paterno deferred comment to the family’s spokesman, Dan McGinn.