The story of the first – and so far only – person in Bulgaria to publicly admit he is a drug boss, has turned into a comedy 18 months after prosecutors hailed his imprisonment as a major success in the war against organised crime.

The first officially recognised Bulgarian drug boss, Dimitar "The Eyes" Zhelyazkov, has signed yet another deal with prosecutors that will only extend his current sentence of four-and-a-half years by three months.

On August 25 2009, the Regional Court in Vratsa, northern Bulgaria sentenced Zhelyazkov to four years and nine months in jail after he confessed to the charges of being part of an organised crime group, together with Yordan Tonov, dealing with people trafficking, money laundering and prostitution .

The sentence is not subject to appeal. The group, popularly known as Tonov's group, was busted in 2008 and in November the same year, Zhelyazkov was charged by prosecutors as one of its members.

At that point, Zhelyazkov was serving a four-and-a-half year sentence handed down by a court in the Black Sea city of Bourgas.

In February 2008, Zhelyazkov confessed that he was a drug boss and pleaded guilty to all charges laid by the Bourgas prosecutors’ office. He agreed to co-operate further with prosecutors on other investigations. So it was that Zhelyazkov became Bulgaria’s first self-confessed drug boss.

Striking his second deal with prosecutors, while serving out the terms of his first, will give Zhelyazkov the chance to take advantage of the Penal Code provisions which says that in such a case the prisoner will serve the heavier sentence. This means that he would serve not four years and six months, but four years and nine months - or three more months than his sentence from 2008.