Alexander R. Sept, 20, of Algonquin.

Police arrested an Algonquin man after they say he was found in possession of child pornography following search warrants that were executed by detectives.

The Algonquin Police Department recently received a cyber tipline report from the National Center for Missing and Exploited Children (NCMEC).

The NCMEC learned of images of child pornography that had been uploaded to a Google account, according to Algonquin Deputy Police Chief Ryan Markham.

The account was reported to be associated with Alexander R. Sept, 20, of Algonquin.

Members of the Algonquin Police Department’s Criminal Investigations Division initiated an investigation.

They obtained numerous search warrants for T-Mobile, Comcast Cable Communications and AT&T for subscriber information, Markham said.

The McHenry County State’s Attorney’s Office reviewed the case after detectives received responses to the warrants and conducted further investigation.

Prosecutors authorized two counts of possession of child pornography, which are Class 2 and 3 felonies, against Sept.

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Investigators arrested Sept without incident at his residence in the 3700 block of Persimmon Drive in Algonquin around 12:45 p.m. Tuesday, Markham said.

Investigators took possession of electronic devices and obtained search warrants for them.

Markham said the devices have since been submitted to the United States Secret Service Digital Evidence Forensics Lab for analysis.

Sept was processed at the Algonquin Police Department and transported to the McHenry County Jail.

McHenry County Judge Michael Chmiel released Sept from the jail with pre-trial conditions, court records show.

A status of preliminary hearing is scheduled for February 22.