An investigation into an incident at the Three Rivers Festival involving Allen County Sheriff David Gladieux will take at least a month, a special prosecutor appointed to investigate said Monday.

Few details have been released, but Fort Wayne police were called at 11:06 p.m. July 16 to Headwaters Park East. Officers found a 15-year-old boy who “fell backwards onto a PVC pipe and something else,” a police report states. PVC is white plastic pipe commonly used for plumbing and drainage.

The report is heavily redacted and does not name Gladieux, but officials have acknowledged the situation involved the sheriff. It was first turned over to the Allen County prosecutor's office, which asked Indiana State Police to look into it.

Madison County Prosecutor Rodney Cummings was appointed special prosecutor last week to investigate.

Gladieux, 55, has not been charged with a crime, and he and local prosecutors have declined to comment.

Cummings said he has asked state police to interview officers who were at the scene, and next steps likely will include interviews with other witnesses. That could take weeks, he said.

“It won't be resolved any time soon – at least a month,” Cummings said. “Particularly when you're dealing with a public official, you want to be deliberative in the process.”

Officers were called to the park on a report of simple assault, disorderly conduct and an intoxicated person, according to the police report filed Thursday. Officers found the boy with “a red mark on his right flank area,” investigators said.

Photographs of the injury were taken, the report states.

Cummings was first elected to his post in Madison County in 1994 and won a fifth term in 2014. He was an Anderson police officer before becoming prosecutor, according to a biography the Indiana Prosecuting Attorneys Council provided.

He was elected last year to represent Indiana on the national board of directors for the National District Attorneys Association and said Monday he has worked on investigations involving high-ranking public officials.

Former Elwood Mayor Ron Arnold resigned in 2015 after Cummings told reporters state police recommended charges be filed in a case in which the mayor reportedly used campaign money for personal expenses. Cummings decided not to file charges after Arnold resigned, according to the Herald Bulletin in Anderson.

Cummings called last week for Anderson's police chief to be demoted for confronting state police when the chief's son – also a police officer – was arrested, the newspaper reported.

There is no timeline for the Gladieux investigation, Cummings said.

“It takes a little time for these things to work their way through the system,” he said.

mleblanc@jg.net