HOUSTON – New Harris County District Attorney Kim Ogg wasted no time in taking over her elected office.

Ogg was sworn in as the new DA is a ceremony just after midnight on New Year’s Day early Sunday.

The new DA has been very busy since she won the office after defeating Republican incumbent Devon Anderson in November.

Ogg fired 37 prosecutors from the DA’s office last month. She said that the cases from the fired 37 prosecutors will be reassigned.

Prosecutor staff shake-ups happen. For instance, Travis County’s new district attorney fired or reassigned 48 people.

Several other Harris County officials were sworn in at the New Years ceremony as well. Sheriff Ed Gonzalez was sworn in to take over for Sheriff Ron Hickman.

"It's a matter of just moving forward. I appreciate Sheriff Hickman's tenure. He was very gracious with his time, as we were transitioning out and I look forward to leaning on him as well, learning things that we're working and look, with any big organization there's always going to be an opportunity for some tweaks and changes and we'll assess that at the appropriate time and do what's best for the citizens and for the Sheriff's Office." said Gonzalez.

He is a former city council member. He says he plans to work with the Houston Police Department to reform the justice system.