Legislate for standardised sudden infant death inquest procedures and verdicts

Since my baby's death I have spoken to quite a few bereaved parents in very similar circumstances, who have explained how different the procedures and outcomes have been. I believe this is very unfair and think it should be more standardised across the UK. I would like to push for all sudden infant deaths that do not have enough evidence to establish a cause to be classed as 'SUDI' (Sudden Unexpected Death in Infancy).