A judge presiding over the murder trial of Lindsay Clancy, who is accused of killing her three young children, has ruled against a defence request to call other mothers who have experienced postpartum psychosis as witnesses. The decision limits the scope of evidence Clancy's defence team can present to support their argument that she was suffering from severe postpartum mental illness at the time of the killings, a case that has drawn wide attention to how the justice system handles claims of postpartum psychosis in serious criminal cases.

Despite the ruling, Clancy's husband is expected to testify on her behalf during the trial, offering testimony intended to support her defence. The case continues to centre on the question of Clancy's mental state at the time of her children's deaths, with the exclusion of the additional witnesses narrowing the range of corroborating accounts the defence had hoped to introduce.