The Travis County Taxpayers Union on Friday morning asked for a criminal investigation of the Austin school district.
The group is alleging the district has violated the Election Code by using public funds for political advertising regarding the $1.1 billion bond package that goes before voters Nov. 7, and is asking County Attorney David Escamilla to investigate communications the district sent to parents of students.
Members of the taxpayer group, including their attorney Roger Borgelt, held a press conference on Friday morning.
The group on Thursday filed a complaint with the Texas Ethics Commission.
Among the allegations, the group says flyers, stickers, letters and emails sent to parents did not contain a disclaimer required by Texas election law, and that the materials amount to illegal lobbying by the district.
Under state law, districts are allowed to circulate factual information about bond elections, but cannot use public resources for political advocacy.
An attorney for the district says employees did not violate the law.