Riminal Law doctrine and women who kill.

Formal question:

Criminal law doctrine seems utterly incapable of dealing with women who kill. Either they are deemed monstrous and receive sentences that cannot be justified under any rational scheme of punishment, or they are treated with undue chivalry.
Critically discuss with reference to UK case law.

(UK law degree)
understanding homicide Fiona Brookman
Twisting in the wind Judith Knelman
Wendy Chan when she was bad Patricia Pearson
Judging women Polly Pattullo
The female offender, girls women and crime Meda Chesney-Lind
When women kill Lisa Pasko
Women murder and justice Belinda Morrissey