Why do domestic violence murderers get shorter sentences than other killers?

If a woman is stabbed to death in the street by a stranger the starting sentencing point for murder is 25 years.

Yet if a woman is stabbed and killed in her own home by her partner - it's fifteen.

So, why is there such a disparity? And is it any wonder some are campaigning for change?

Julie Etchingham is joined by ITV's Tonight programme producer, Anna Manton and the Chair of charity Refuge, Hetti Barkworth-Nanton.

For more on this, tune into ITV's Tonight programme at 20:30 on Thursday 22nd February or catch up on ITVX.