Alison Saunders sparked controversy when she ruled peer ' n't stand trial . Lord Janner will not be charged with crimes despite not having convictions . It has emerged she trained at same legal firm where peer was top prosecutor . Country 's top prosecutor is now facing pressure to quit from campaigners .
Alison Saunders sparked outrage when she ruled peer would n't face trial . Lord Janner will not be charged with crimes despite CPS having evidence . It has emerged she trained at same legal firm where Janner was top QC . Country 's top prosecutor is now facing calls to quit from campaigners .