Original sentence: Hashim Thaci also founded the "Drenica-Group" an underground organization that is estimated to have controlled between 10% and 15% of all criminal activities in Kosovo (smuggling arms, stolen cars, oil, cigarettes and prostitution).It is because of this that on 11th July 1997 Thaçi and his Drenica unit went into hiding in the woodlands in Drenica, although they continued to often visit Albania and Switzerland, not remaining in Kosovo in hiding.Later the same year another unit under Thaci threw hand grenades into the Serbian military barracks "Miloš Obilić" in Vučitrn in central Kosovo.On 17th June 1996 Thaci and several other members of the KLA opened fire on a Serbian police car in Sipolje in northern Kosovo, on the Kosovar Mitrovica-Pec road.One of the group's first military activities in Kosovo was the May 25 1993 attack on the railroad crossing in Glogovac in central Kosovo, when a band composed out of Thaci and his closest Drenica friends, Rafet Rama, Jakup Nuri, Sami Ljustku and Ilijaz Kadriju; killed four Serbian policemen and severely wounded three.The Group relied on its close connection to the Albanian, Czech and Macedonian mafia; one of the most important factors in these connections being Thaci's sister's marriage to Sejdija Bajrush, one of the largest Albanian mafia leaders
Edited sentence: As with other paramilitary leaders operating in the countries of the former Yugoslavia, Thaci is alleged to have extensive criminal ties