According to court documents, Sevdet Besim, a Melbourne teenager, allegedly discussed plans to use a kangaroo in a terror plot for Anzac Day last year. Besim was reportedly planning to paint the kangaroo in ISIS flag colours, pack it with explosives and let it loose on police officers.

Communications resumed in the early hours of Thursday 20 March 2015 with an image being sent by BESIM with a comment of ‘look what I got ahaha’,” said in the court documents as quoted by the ABC. “The conversation continues with BESIM detailing what he did that day and they have a general discussion around animals and wildlife in Australia including a suggestion that a kangaroo could be packed with C4 explosive, painted with the IS symbol and set loose on police officers.”

Besim, 19, from outer south-east of Melbourne, pleaded not guilty of four charges in connection with a terrorist act that was being plotted over the internet and phone for the Anzac Day in 2015. The charges included internet searches relating to Anzac Day in Melbourne and Dandenong, creation of an electronic memo on his phone and others. The teenager was initially charged with five offences. But commonwealth prosecutor Andre Doyle withdrew a charge against him for after he appeared before the Melbourne magistrate’s court on Thursday.

Besim is also facing charges for communicating with another teenager outside Australia and for planning to behead a police officer on the Anzac Day. The date was chosen with the motive to make the attack more memorable.

“I’d love to take out some cops,” the Guardian quoted Besim as allegedly telling his overseas connection in online communications. “I was gonna meet with them then take some heads ahaha.”

According to police, the duo also used to have general conversations about Australian wildlife. In one such conversations, Besim allegedly said that a kangaroo can be packed with explosives and painted with the IS flag and then let loose on the police.