Investigators in the Wesley St double homicide are promising ''identity protection'' for anyone who comes forward with further information, in a bid to boost their collection of evidence.
The bodies of Anastasia Margaret Neve (35) and David Ian Clarke (49) were found inside the South Dunedin house on January 22, after it was set alight.
Southern police district investigations manager Detective Inspector Steve Wood said evidence suggested they died before the fire started and police were treating the deaths as a double homicide.
The 46-year-old Dunedin man accused of burning down the house was granted interim name suppression and remanded in custody by consent until his next appearance later this month.
The man was known to the couple.