The retired Colombian striker was arrested by officers in Madrid on Tuesday before being interrogated for hours.
He was allowed to return home after being interrogated and has since pleaded innocent.
“I am very calm,” said Congo on the sports program El Chiringuito. “It is not a comfortable situation, but I am at home … relaxed. They asked me a series of questions and, in the end, I went home. “
The Congo had been on Real Madrid’s books for three years after being signed at the start of the Galactico era in 1999.
However, the striker never made his competitive debut for the Los Blancos, after being dispatched on three separate loan periods before his final departure in 2002.
He said he may still have to speak to the police as part of their investigation.
“They told me to be ready for another call,” he said. “I am free and I am relaxed because I do not traffic cocaine, I do not have cocaine at home.
“The police told me that I had to get away from some people who were not good for me. That I should be aware of things and do them in a different way. “
The Congo was one of 10 people detained by the Spanish Central Narcotics Brigade during their operation, according to Marca.
He now works as an expert for El Chiringuito after moving into the TV studio after hanging up on the boots.
After signing for Madrid from Once Caldas, the Congo has become the most expensive Colombian footballer ever, costing 5 million euros (around £ 3.1 million).
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After stays on loan in Valladolid, Vitoria Guimaraes and Toulouse, the Congo was signed by Levante, before representing several other Spanish clubs.
He also won 17 caps for his country and played for Colombia in the Copa America tournaments of 1999 and 2004.
His involvement with Real Madrid in recent years has only extended to charity, although he scored in a benefit game aimed at combating drug use in 2002.
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