A murder victim's aunt also wants judges to be able to punish criminals who refuse to attend court.
The government has been urged to press ahead with plans to force criminals to attend their own sentencing hearings.for at least 42 years on Monday for the shooting murder of Olivia Pratt-Korbel in her own home.
Like Cashman, he also refused to attend his sentencing in person, leading Ms Naz to say he had wrongly taken control of the courtroom."I think there are other ways to make the convict come to face their judgment and that would be to add time to their sentencing, or there can be other ways. "He took power over Zara and then... in the courtroom he took power. It felt like he was able to have that," she said.Cashman, 34, killed Olivia and injured her mother Cheryl Korbel as he chased a fellow drug dealer into their Dovecot home on 22 August.Watch: Judge passes mandatory life sentence for the murder of Olivia Pratt-Korbel