A former New Orleans police officer twice convicted of child pornography has been jailed on allegations of sneaking out of a halfway house to use public computers to access the Internet.

U.S. Magistrate Stephen Riedlinger on Tuesday jailed Stanley Burkhardt — the former commander of the child-abuse unit for the New Orleans Police Department — until a final hearing to revoke his release permanently. No date was set immediately.

Burkhardt, 55, spent seven years in federal prison and was released less than three months ago. He was sentenced in 1999 after pleading guilty to accepting delivery of a videotape depicting child pornography and possessing child pornography at his home.

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After being freed in April, he began a five-year term of supervised release.

According to court documents, prison officials searching his cell a month before his release found nearly 100 pictures of teenage boys cut from magazines and letters from other convicted child-sex offenders.

After Burkhardt was initially released to a Lafayette halfway house, he was transferred to a Baton Rouge halfway house for more intense supervision, according to court documents.

Probation officials allege he sneaked away without permission, got a library card and accessed the Internet on a library computer before using a state labor department computer normally used by the public for job searches.

Burkhardt was arrested first in 1987 while still a police officer and pleaded guilty to five counts of trafficking in child pornography. He was sentenced to 10 years in that case, but was released in 1992 after finishing a prison therapy program for pedophiles.

He also pleaded guilty at that time to molesting a 9-year-old girl a decade later, but was given credit for time served.

Burkhardt's second arrest came as the result of a sting operation during which he accepted a pornographic video from a postal inspector posing as a mail carrier.