Guns, knives and a stash house were being sought by some teenagers charged with terrorism-related offences for an upcoming attack, a court has heard.

The revelations were made when a 17-year-old tried to secure his release on conditional bail before Parramatta Children’s Court this afternoon.

He was one of six teenagers arrested by a Joint Counter Terrorism Team investigating – what they labelled – a “network” sharing “similar violent extremist ideology”, after a stabbing designated a terror act at a western Sydney church on April 15.

Messages allegedly sent by the 17-year-old to a group over a secure messaging app were read out by Magistrate Janet Wahlquist from a police statement of facts tendered to the court.

“We can’t f**k around now cuz, this is serious shit, we’re going to kill”, police allege he said.

“We’re going to need patience, we’re going to be planning for a while.”

The court heard the 17-year-old allegedly discussed a plan targeting non-believers, referring to them as “kufar”, in language the magistrate described as ideological in nature.

Police allege he asked where “nerf guns” could be purchased from on April 19, suggesting it was code for “dirty” guns, which could be bought from the black market.

“Don’t worry how much or where the money will come from, you can’t tell anyone about this… my connec (sic) says he will get the money for us,” police allege he sent in messages to the group.

“Do you think they will be dirty? Bring $2000 to $4000. That will get at least two to three guns.”

He allegedly was also looking for a secure location to stock items.

“Do you know any abandoned houses that no one cares about that we can use to hide stuff?” he allegedly asked in messages.

The teenager’s parents sat quietly in court as he appeared over audio-video link.

Defence barrister Greg James said no terrorist act was ultimately planned in the messaging chat.

“We don’t know, even from all the material, even from the analysis of the messages … what the terrorist act is said to be, how much has been agreed on, or what had been a matter of speculation or conjecture,” he said.

He told the court the 17-year-old has no criminal history but is currently facing separate charges, which remain before the court.

Mr James said any risks posed by him could be ameliorated by imposing strict bail conditions.

‘Fully aware of potential danger’

Representing the Commonwealth, barrister Chelsea Brain opposed the teenager’s release on bail, claiming he contemplated “an act of violence on members of the community”, as she also read out messages he allegedly sent.

She said he possessed a knife when he was arrested.

In her deliberation, Magistrate Wahlquist said the 17-year-old didn’t have a criminal history, was engaged in employment and had schooling prospects.

However, she refused his application for release, claiming the protection of the community remained the court’s paramount concern.

She referenced a message the teenager allegedly sent, after one of the members in the group chat was arrested and his phone was believed to have been seized.

“This young person was fully aware of the potential danger of what might happen if he was caught and that did not stop him.”