The Niagara County Sheriff is praising Newfane school officials for quick action that helped bring about the arrest of a high school teacher on sex abuse and other charges.

Sheriff James Voutour said Newfane High School teacher Allan V. Grogan, 50, of Derby is accused of having an inappropriate relationship with a student.

Grogan is charged with first-degree disseminating indecent material to minors, a felony; two misdemeanor counts of third-degree endangering the welfare of a child; and four misdemeanor counts of third-degree sexual abuse.

Grogan was released on $5,000 bail after appearing Tuesday in Newfane Town Court. He is due May 12 in Newfane Town Court for a felony hearing. Grogan, who was arrested late Tuesday by Investigator Kristen Neubauer, was also ordered by the court to stay away from school facilities and the alleged victim.

Voutour said the arrest was the result of an investigation that began after a complaint came in Grogan was having an inappropriate relationship with a Newfane student younger than 17. The sheriff said Newfane staff and administrators were very cooperative.

“Anytime allegations such as these are brought against a teacher, it is very disturbing,” Voutour said. “I commend the administration at Newfane School for moving very quickly and helping the Sheriff’s Office investigate this case.”

Superintendent Gary Pogorzelski said pending further court proceedings, Grogan has been placed on unpaid administrative leave. Although everyone is presumed innocent until proven guilty, Pogorzelski said the district takes such allegations seriously.

“We plan to monitor the criminal proceedings in this case closely,” he said. “And we are prepared to take whatever further action may be called for under the circumstances as they unfold.”

Grogan is a special education teacher and has been working in the district for about six years. Prior to being hired in spring 2003, Grogan went through a background check that did not reveal any problems, Board President Patrick Kilcullen told residents at Wednesday’s Board of Education meeting. Pogorzelski said a background check includes fingerprinting — which is run through a legal system database for any kind of record — discussions with previous employers and references.