Miracles and Malice
Rosalind didn't let the police interrogate the kidnappers about the robot dog because it wouldn't lead to anything.
If there was a problem with the robot dog, it must have been disposed of.
The only definite evidence was Arabella.
Rosalind could guarantee that Arabella would wake up, but not that she wouldn't lose her memory, whether temporarily or permanently.
She was not confident.
Meanwhile, My