PORTLAND, Ore. (KOIN) – The city’s former tennis director is now being held on more than $1 million bail after being re-indicted by a grand jury on child pornography charges.

Thomas Zachary Rouse, 42, was booked into the Multnomah County Detention Center on Thursday afternoon.

The Portland Police Bureau’s Sex Crimes Unit has been investigating Rouse since early 2015.

In the six months following, 39 warrants and subpoenas were issued, to include a warrant to search servers in a foreign country for data relating to Rouse’s activities, according to police.

On April 12, the grand jury issued a 23-count indictment against Rouse. He is now charged with four counts of using a child in a display of sexually explicit conduct, three counts of second-degree online sexual corruption of a child and 16 counts of second-degree encouraging child sexual abuse.

The grand jury alleges that Rouse unlawfully and knowingly allowed a child to participate in, and engage in, sexually explicit conduct for a person to observe and record in a visual record. He is also accused of using an online communication, for the purpose of arousing and gratifying a sexual desire, to solicit a child to engage in sexually explicit conduct and/or offered to agree to physically meet with the child.

Court documents show police have identified four minor females as victims. Detectives confirmed that these charges are not related to Rouse’s former work as a tennis coach.

In early October, when Rouse was first arrested, the DA’s Office charged him with one count of second-degree online sexual corruption of a child and five counts of second-degree possession of materials depicting sexually explicit conduct. The case went to a grand jury.

On Oct. 15, 2015, the grand jury decided not to indict him with the five counts of second-degree possession of materials depicting sexually explicit conduct. Instead, he was only charged with the single count of second-degree online sexual corruption of a child. The investigation, including forensic examinations, continued.

By Feb. 2016, prosecutors dismissed the Oct. 15 indictment after a grand jury produced a second indictment, which charged Rouse with two counts of second-degree online sexual corruption of a child.

The 23-count indictment, handed down on Tuesday, is the third true bill the grand jury has issued.

At each of Rouse’s earlier two arraignments, he entered pleas of not guilty.

If anyone has information relating to Rouse, please contact Detective Cory Stenzel at 503-823-0453, cory.stenzel@portlandoregon.gov.