Ms Adams told the Herald she had deliberately kept an open mind on the case, which has divided New Zealanders for decades.
"I am probably one of the few people in New Zealand who doesn't have a fixed view of this."
The minister said she had not read either Justice Binnie's or Justice Fisher's reports "so that when the court process concludes I really can ... look at it afresh".
Ms Adams said the judicial review could provide some direction on whether she should recommend compensation for Mr Bain.
Based on previous awards, Bain could be entitled to at least $2 million if Cabinet approves compensation.
A preliminary hearing for the judicial review is set for February.
Drawn-out battle
May 1995: David Bain convicted of killing five family members in Dunedin.
June 2009: Conviction quashed in a retrial after Privy Council appeal
Nov 2011: Canadian judge Ian Binnie investigates compensation issue
Aug 2012: Mr Binnie concludes Bain should be compensated. Justice Minister Judith Collins seeks a peer review from Robert Fisher QC.
Dec 2012: Fisher review says Justice Binnie's report was inaccurate and cannot be used.
July 2013: Bain's legal team seek judicial review of Ms Collins' handling of compensation claim.
Sep 2014: Amy Adams is made Justice Minister.