Allen Q. Nguyen, 29, of Huntley.

A judge denied pre-trial release for a Lake in the Hills taekwondo instructor who was arrested after detectives found him in possession of child pornography in Huntley.

The National Center for Missing and Exploited Children (NCMEC) notified the Huntley Police Department in June about information that was obtained from the Internet Crimes Against Children data system.

An unidentified internet subscriber was flagged for possibly possessing child pornography, according to Huntley Deputy Police Chief Linda Hooten.

The Huntley Police Department Investigations Division conducted a four-month investigation that led to the identification of the offender, Allen Q. Nguyen, 29, of Huntley.

Police detectives and the Kane County Child Exploitation Unit served a search warrant in the early morning hours on Tuesday, Hooten said.

Hooten said the warrant was executed at a residence in the 10400 block of Auburn Court in Huntley where Nguyen was renting a room.

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Detectives recovered evidence of child pornography during their search warrant.

Court records show the material recovered involved sexually explicit videos of children, some under the age of 13.

A criminal complaint filed in McHenry County Circuit Court said the material recovered were videos and Nguyen disseminated the explicit material.

Nguyen was taken into custody and transported to the McHenry County Jail.

Nguyen was charged with four counts of child pornography, two of which are Class X felonies and the other two are Class 2 felonies.

The McHenry County State’s Attorney’s Office filed a petition to detain Nguyen, calling him a real and present danger to the community as well as a willful flight risk.

McHenry County Judge Michael Coppedge on Wednesday granted the petition to hold Nguyen pending trial.

Nguyen said in an assets and liability affidavit filed in court that he was currently employed at the time of his arrest at Ha’s Taekwondo Academy, 421 North Randall Road in Lake in the Hills.

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Ha’s Taekwondo Academy said Friday morning that they would be holding an emergency parent-only meeting at their building at 7 p.m. Friday.

“At that time we will try to address your concerns and find the best way to move forward. Please do not bring your children,” the martial arts school said.

The business said they will be closed until at least Tuesday.

Hooten said an active investigation into Nguyen is still underway. Anyone with information regarding the case is encouraged to contact the Huntley Police Department at 847-515-5311.

Anonymous tips can also be submitted by calling the Huntley Police Tip Line at 847-515-5333 or by texting TIP HUNTLEY followed by the message to 888777.