At the end of June the Spanish Supreme Court ruled that migrants arriving by sea could not be summarily deported. A few weeks later 60,000 people from Morocco crossed in the Spanish enclave of Ceuta, almost doubling their population in a few days. Australia saw over 20,000 people a year trying to enter Australia by sea. But he saw the number of illegal arrivals fall 90% from 2.2 million to 240,000 – a 50 year low. Ceuta shows what happens when you provide an incentive for illegal crossings.