# Portuguese fraud investigations and legal proceedings

> Developing situation record from CLSTR: https://clstr.news/situations/portuguese-fraud-investigations-and-legal-proceedings
> Updated: 2026-10-28T00:01:45.000Z. Sources: 12. Developments: 2.

Legal proceedings regarding major fraud investigations in Portugal have faced varying developments. In the ‘Digital Alliance’ case, which involves 158 defendants accused of crimes including money laundering, document forgery, and facilitating illegal immigration through ‘white marriages’, a procedural error has threatened the investigation. A judge described the Public Ministry’s failure to translate an indictment as an ‘incurable nullity’.

Separately, in the Porto area, the Public Ministry has indicted 20 individuals and 13 companies for an estimated eight million euro tax fraud scheme involving the wood products sector and fictitious invoicing between 2017 and 2022.

In a recent ruling by the Porto Court of São João Novo, businessman Mário Ferreira, owner of Mystic Invest and Douro Azul, was acquitted of qualified tax fraud concerning the sale of the ship Atlântida. The Public Ministry had alleged a ‘simulated sale’ designed to shift profits to a Malta-based company, claiming the transaction resulted in an undeclared gain of 3.7 million euros and an illegitimate tax advantage of approximately one million euros. Prosecutors argued the sale price was significantly below market value; however, the court ruled that the objective and subjective elements of the crime were not proven and that the prosecution failed to demonstrate criminal conduct.

## Timeline

### 2026-10-28: Mário Ferreira acquitted in Atlântida ship sale tax fraud case

Businessman Mário Ferreira has been acquitted by a Porto court of qualified tax fraud related to the sale of the ship Atlântida to a Maltese company.

10 sources. https://clstr.news/cluster/portugal-prosecutors-charge-20-individuals-in-8-million-tax-fraud-scheme

### 2026-10-26: Portugal prosecutors' error threatens 'Digital Alliance' fraud case

A procedural error by Portugal's Public Ministry regarding indictment translations threatens a major fraud case involving 158 suspects and a 2-million-euro fake marriage ring.

2 sources. https://clstr.news/cluster/portugal-prosecutors-error-threatens-digital-alliance-fraud-case

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Cite as: Portuguese fraud investigations and legal proceedings. CLSTR, https://clstr.news/situations/portuguese-fraud-investigations-and-legal-proceedings