If CA is granted a new trial WA would still be required as a witness. If she is arrested now, there is no immunity and she can refuse to testify which means the State would have to proceed without her. I think she is a key witness. So it is logical for them to not arrest her whilst CA appeal is in process. This does mean she may not be arrested for years as the appeal process is so slow and laborious.
Ultimately, unlike us, the State have to be disciplined and take the emotion out of it. The likes of GC and Sarah are humans and desperate for justice to be served. But they need to be clinical. The end goal is 7/7 in prison and if that means WA walks this earth as a free woman for 2-3 more years that's a sacrifice they are willing to make.
It could transpire that they arrest WA now, CA gets a new trial and is found not-guilty. WA is also found not guilty and the Sate decide not to proceed against HA because of the trial outcomes. That's 4/7. WA could also be used as a witness in her Dad's trial. So she might not even be the next arrest. HA is picked up after CA's appeal fails.
Ultimately, unlike us, the State have to be disciplined and take the emotion out of it. The likes of GC and Sarah are humans and desperate for justice to be served. But they need to be clinical. The end goal is 7/7 in prison and if that means WA walks this earth as a free woman for 2-3 more years that's a sacrifice they are willing to make.
It could transpire that they arrest WA now, CA gets a new trial and is found not-guilty. WA is also found not guilty and the Sate decide not to proceed against HA because of the trial outcomes. That's 4/7. WA could also be used as a witness in her Dad's trial. So she might not even be the next arrest. HA is picked up after CA's appeal fails.