Lawyers for the 28 year-old man, who cannot be named, appeared in Brisbane's Supreme Court today and successfully argued for his release.

He faces two counts each of murder, torture and failing to provide the necessities of life after police discovered the decomposing bodies of his 18 month-old son and daughter.

The children weighed 3.6 and four kilograms and had been dead for several days. The man's 30 year-old partner faces the same charges.

In opposing bail, Prosecutor Ross Martin told the court the man had shown "spectacular irresponsibility" in abandoning his obligation to care for his children.

The man's lawyers argued the primary care of the children was the mother's responsibility, and he was "busy in his life" with work.

The court heard the man wanted to attend the twins' funeral, expected to be held later this week.

Justice Debra Mullins said it would be "inappropriate" and ordered he have no contact with any Crown witnesses, including his four other children.

"Because of the risk of interfering with Crown witnesses, and that the applicant's other children may be witnesses, I consider any granting of bail should be on the basis he have no contact with his other children," Justice Mullins said.

However she agreed to allow the man permission to see his father, saying he would "require the support of his parents as he faces these charges".

He is expected to be released from prison later today on strict conditions, and will reside with his younger brother.

The man's parents will also be required to pay a $10,000 surety.

He will be required to report to a police station three times per week and surrender his passport.

The other children remain in the care of their grandmother.

brisbanetimes.com.au