Gerard Baden-Clay, 41, is bent on proving his innocence over police allegations that he had murdered his wife Allison before reporting her missing on April 20. But police officers have been unfolding pieces of evidence linking him to his wife's death.

Here is a summary of the battle of evidence surfacing in Aussies news outlets regarding the murder case of 43-year-old Allison Baden-Clay.

Gerard: SMS sent to wife on April 20

Gerard Baden-Clay told police he sent text messages to his wife Allison when he woke up on the morning of April 20 and found she was not home.

The text messages, sent at 6:20 and 6:41 in the morning, contained questions of Allison's whereabouts.

The 6:41am SMS: "Al, getting concerned. Where are you? The app doesn't say either. (Two children) are up now. I'm dressed and about to make lunches. Please just text me or call! Love G."

Police: Statement does not match on duration of sleep

Gerard has told police he last saw his wife watching TV at 10pm on April 19. He said he was asleep until the next morning. But police found data showing that Gerard called his father at 12:30am of April 20. Allison's body was found by a canoeist under the Kholo Creek Bridge at Anstead on April 30.

Police: Face and body scratches suggest Gerard was in a fight

When police asked Gerard about the scratches on his face, he said it was caused by an old shaver. About two months later, Gerard has grown his beard and his facial scratches have left scars. Police said shave bruises do not leave scars.

Police: Gerard owes over $1 million to friends, family and business links

Police uncovered Gerard's debts amounting to more than a million dollars, some of which is due for payment by June 30. Police said insurance claims over Allison's death could have been a motivation for the murder.

"The defendant stands to gain a significant amount of money from life insurance policies for the deceased. Investigations indicate recent inquiries regarding these accounts made by the defendant prior to the disappearance of his wife," police investigators wrote.

Gerard: No other suspects?

In the Supreme Court records, Baden-Clay lamented, he had "not been told or seen anything to suggest police were looking at anyone else other than myself as principal suspect."

He also said, "I was aware from media publications as early as 23 April 2012 that I was suggested to be a suspect."

Police: Crime scene is at Baden-Clay home and yard

When police tracked Allison's phone the first time, results showed it is within a 4-km radius. The second triangulation showed the same result, convincing police that scene of the crime was at the Baden-Clay home and yard.

Police: Promise to the 'other woman'

Gerard's mistress, Toni McHugh, was quoted in the court documents as telling police that Baden-Clay would "sort out his financial situation and they would be together by 1 July 2012."

Gerard: Not guilty?

"It is my intention to strenuously contest the charges levelled against me," Baden-Clay said in the Supreme Court documents relating to the rejection of his bail application.

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