A team from the GNR coastal unit at Vila Real de Santo António spotted two inflatable boats it deemed suspicious and, with the SIVICC coastal surveillance system, followed them until they docked at Cabanas de Tavira on 22 March 2020.[1][2] A van was already waiting on the coast, and the traffickers began loading the bales into it; when they saw the officers they fled.[1][2]

Police confiscated the two boats, the van and 113 bales of hashish weighing 3.7 tonnes, and identified one man believed to have taken part in unloading the drugs.[1][2] The case passed to the PJ criminal police for investigation.[1][2]