A Perth mum accused of stealing more than $100,000 of her son's Dreamworld disaster compensation has had charges dropped.

Michelle Hanson and her 16-year-old son were in the raft behind the one that flipped at the Gold Coast theme park, leading to the deaths of four people.

Michelle Hanson and her 16-year-old son were in the raft behind the one that flipped at the Gold Coast theme park, leading to the deaths of four people.

A Perth mum accused of stealing more than $100,000 of her son's Dreamworld disaster compensation has had charges dropped.