These are the latest details of a sexual encounter gone wrong that took place in the early hours of Monday morning in the Lisbon parish of Benfica. A 40-year-old man ended up dead at the hands of a PSP officer.

The policeman had gone to the Algés area of Lisbon, "looking for some fun", to hire a sex worker, as a source with knowledge of the case told Expresso.

Encontro sexual entre polícia de elite e prostituta termina em morte
Agente da PSP terá agido em legítima defesa depois de encontro com prostituta, que acabou com a morte a tiro do alegado raptor

The officer from an elite PSP unit was off duty and arranged to meet a prostitute, but the evening ended badly.

The pimp wanted more money than initially agreed for sexual services, reports the same weekly, which spoke to sources linked to the investigation.

After meeting the prostitute and facing the alleged pimp's demands, the officer was "forced to go to an ATM to withdraw money and hand it over to the man", as he told investigators from the Judicial Police (PJ).

"He was threatened with a gun" which turned out to be a fake, say the same sources heard by Expresso.

The policeman then convinced the man to go to his house, where he claimed he had more money. The three of them drove in the car of the alleged pimp and the prostitute to the residence in the Benfica area, in a building exclusively inhabited by police officers.

The woman stayed in the car while the two men went up to the policeman's apartment.

Inside the house, "tempers flared and the officer shot his abductor in the chest with his service weapon", reports Expresso.

The alleged kidnapper ended up dying and the woman escaped, but has now been arrested. She is in pre-trial detention on charges of robbery and kidnapping.

There may have been a third man involved in the incident, but he disappeared from the scene.

The officer is also a defendant, but is free and has returned to duty, albeit without his weapon.

Members of the PJ told Expresso that the officer "spoke and cooperated" and that they consider his version to be "credible" and that he acted in self-defense.

But some PSP officers criticized the officer's behaviour, in anonymous statements to the weekly, considering that he "allowed himself to be entangled in a complicated situation".