Bulgarias Parliament is expected to approve a motion calling for reinvigoration of the campaign against corruption and organised crime.
Bulgaria was making "insufficient progress" against organised crime, according to the Financial Times (FT).
The European Commission gave Bulgaria and Romania 12 months to meet basic EU membership rules on justice and home affairs.
The shooting in Sofia last week of Manol Velev, a businessman who helped to fund the 2006 re-election campaign of President Georgi Purvanov, a former leader of the Bulgarian Socialist Party, called attention to a failure by authorities to deal with organised crime.
Local criminal groups have been held responsible for more than 100 unsolved contract killings in Bulgarian cities over the past decade. Investigators, prosecutors and judges have said they have encountered political pressure to delay, or even drop such cases.
Prime Minister Sergei Stanishev was setting up a national security agency to combat corruption and crime, FT said. The agency would be answerable to him. The aim of the agency was to unify intelligence operations among the defence, interior and finance ministries.
According to analyists, progress may be slow, given the socialists' weak position after a poor showing at the European Parliament elections and a lack of popular pressure to implement judicial reform.
