She was tried for an accident resulting in passenger's death. The prosecutors initially proposed Jędrzejczak an agreement which would lead to a sentence of 2 years imprisonment in suspension. Jędrzejczak refused the agreement and strongly pressed for an acquittal, stating that she was already punished enough by her brother's death. Her trial began in February 2007 before the District Court in Płońsk, close to the place of the accident. She was convicted and sentenced to 9 months of probation during which she had to do 30 hours of community service a month. She also lost her driving licence for 1 year. Both the prosecution and Jędrzejczak appealed to the Regional Court in Płock, which upheld the ruling.