Chris Kaba, who was due to become a father, was stopped by firearms officers when his car was flagged by a number plate recognition camera.
The officer who shot dead Chris Kaba in south London should have been suspended sooner, the victim's family says.
Speaking on behalf of the family, Mr Bosela told Radio 4's Today programme: "We welcome that decision but, to be honest, I think... the second a criminal investigation was opened he should have been suspended from there. "Officers - volunteers - know the responsibility/accountability that comes with it and deserve our support.
The family is also demanding the IOPC releases police-worn camera footage of the shooting and aerial helicopter footage, as well as a timeline for the investigation."The nature in which he died makes it really harsh and so difficult. They're so strong but they're struggling." "At the vigil, his mother was saying, 'Chris, what were you saying in your last minutes? I wish I had just one minute with you, speak to me please'. It was heart-breaking," Mr Bosela continued.Mayor of London Sadiq Khan said the decision by Met Police Commissioner Sir Mark Rowley to suspend the officer was "a really important decision", which he "fully" supported.