CHARGES could be laid over the murder of Brookfield mum-of-three Allison Baden-Clay as early as this week with key test results due very soon.
Police said they were unlikely to make an arrest until they had the results of Mrs Baden-Clay's autopsy and toxilogy tests.
The results are due some time this week with the usual turnaround for the tests two weeks.
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Detective Superintendent Mark Ainsworth said police did not believe the attack was random and confirmed police were confident of making an arrest.
''We believe that Allison may have known her attacker,'' he told The Sunday Mail.
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