Throughout the period he was dealing with her, she kept up the facade that she was genuinely grieving for the death of her husband."
The following August, a body was found off the coast of Hartlepool and police asked Mrs Darwin if she would be prepared to identify it.
As a detective explained the situation, she burst into tears and said she wanted the body to be John's so he could be laid to rest, and so that she could move on, Mr Robertson told the jury.
He added: "We submit this was a convincing performance and one which obviously required no prompting, let alone coercion, from her husband."
Mrs Darwin's defence centres on her claim that she was coerced by her husband.
Mr Robertson said that for the defence to succeed, she must prove that Mr Darwin was present at the time each offence was committed .
She will also have to show that the pressure was so great that she had no choice, and "she was impelled to act in a way against her own will".
He showed the jury a photograph of John and Anne Darwin smiling and posing with a Panamanian estate agent, when the couple were looking to buy property in Central America with the proceeds of their fraud, he said.
