The brother of Australian cricketer Usman Khawaja is under police investigation, over possible links to a notebook allegedly containing a terrorist hit-list and setting up Sri Lanka’s Kamer Nizamdeen over the alleged terror plot , Ten News Australia reported. 

NSW Police have dropped terrorism charges against Nizamdeen who was accused of plotting to assassinate Australian politicians.

Detectives arrested Mohamed Kamer Nizamdeen, 25, in August — accusing him of writing in a notebook, discovered on-campus at UNSW, about plans to kill former prime minister Malcolm Turnbull and his former deputy Julie Bishop.

However, police were forced to release him on bail last month after prosecutors conceded a handwriting expert could not prove he had written the notes in the notebook. 

It was previously alleged Mr Nizamdeen possessed a blueprint to target several “symbolic” Sydney locations, after officers from NSW’s Joint Counter-Terrorism Team (JCTT) arrested him at Kensington, in Sydney’s southeast in August.

Shortly after he was released last month, the student released a video online proclaiming his innocence.

“I have just been granted bail and am a free man,” he said.

“I have never been more proud of being Sri Lankan after seeing the immense support for me and believing that I’m innocent, which I am, so thank you so much.”

His lawyer Moustafa Khier said shortly after he would seek to have the charges against Mr Nizamdeen dropped completely.