Anthony Faiola and Catarina Fernandes Martins
Overdose rates have hit 12-year highs and almost doubled in Lisbon from 2019 to 2023. Sewage samples in Lisbon show cocaine and ketamine detection is now among the highest in Europe, with elevated weekend rates suggesting party-heavy usage. In Porto, the collection of drug-related debris from city streets surged 24 percent between 2021 and 2022, with this year on track to far outpace the last. Crime — including robbery in public spaces — spiked 14 percent from 2021 to 2022, a rise police blame partly on increased drug use.