The 'Rip Deal' technique involves contacting individuals selling high-value assets, such as property, gaining their trust, and then executing a transaction where legal banknotes are swapped for counterfeit ones, often of high denomination.

In the Barcelona case, the perpetrators met the victim at a hotel under the pretense of finalizing a property sale. Their goal was to scam 30,000 euros in cash. Mossos agents observed the two individuals acting with a "nervous attitude" while discreetly exchanging suitcases inside the building.

Upon searching the suitcases received by the victims, the police confirmed that they contained a total of 140,000 euros, fractioned into 200-euro notes, which were allegedly counterfeit. One of the detainees carried a banknote counting machine and a counterfeit detection machine in his backpack, along with 54 apparently fake 200-euro notes. The second man carried the briefcase containing the 30,000 euros in legal tender obtained from the victim.

The scheme began weeks earlier when one of the men contacted the victim about purchasing a flat valued at one million euros. Through meetings and calls, he established a relationship of trust and demonstrated solvency, convincing the victim to accept the condition of exchanging 30,000 euros in high-value notes for smaller denominations as part of the overall payment.