I think dropping the murder charge against her could aid her defence. Police aren't confident she knew Bee was going to be killed, so why should the jury believe she immediately just accepted she was dead and helped him? That fits more with believing Scott's story she ran away and sending texts from her phone to give the appearance of smoothing over any fights they had had the week before. The CPS has screwed this up IMO. It seems more likely to me that SaW sent him out to murder her, especially sending ScW to pick her up and still not returning her phone to her. It makes me furious since she's in court anyway. What's the harm with letting a jury decide whether they proved it or not, they can't bring charges later.