Emily Pataki, eldest daughter of former Gov. George Pataki, has joined the Bloomberg administration as a $70,000-a-year aide to the mayor’s criminal-justice coordinator, officials said yesterday.

“We’ve hired her to work on human-trafficking issues,” said Stu Loeser, the mayor’s spokesman.

Officials said Emily Pataki, who flunked the bar on her first attempt, passed in 2007 on her second try.