In April 2009, federal investigators launched an investigation into child pornography found on a Nature Center computer, according to the organization's attorney Matthew Maddox. The discovery of the pornography led to the firing of a male property maintenance worker who was assigned to the computer that contained the contraband.

Now, nearly 11 months later, the investigation is still under way and no charges have been made, Maddox said.

According to Jeffrey Meyer, a former assistant U.S. attorney and an associate law professor at Quinnipiac University School of Law, child pornography possession cases often move quickly when there is flagrant evidence, but delays such as the 10-month and counting investigation into the Nature Center employee are not uncommon.

"If there are question marks about whether ... the evidence qualifies as evidence or whether the suspect is the one responsible ... delays can occur," he said.

"Ordinarily, if there's significant delay, perhaps for forensic reasons, you would expect the investigators would have tabs on the individual during the investigation," he added.

The case is under investigation by the U.S. Attorney's Office in Bridgeport, according to Maddox.

Maddox, who said the former employee is in his mid to late-50s and is not a New Canaan resident, did not release the employee's name or any information about the format of the amount of pornography, since the federal investigation is still pending.

The former employee passed criminal and sex offender background checks before he was hired in early 2009, according to Nature Center Director Laura Heckman.

The Nature Center is a not-for-profit environmental education center funded by its programs and events, membership dues and private donations.

Possession of child pornography is a felony punishable by a maximum penalty of five years in federal prison.

U.S. Attorney's Office Spokesman Tom Carson would not confirm or comment on the case.