MOBILE, Alabama -- Police announced on Friday that a criminal investigation would be launched after a person alleged a disgraced former sergeant used his position to get sexual favors.

On Sept. 12, then-Sgt. Michael Smith lost his employment with the Mobile Police Department after an internal trial board determined he used police resources to get the personal information of several women.

Police spokeswoman Ashley Rains said he used state and local databases.

The board determined Smith was guilty of engaging in conduct unbecoming of an officer, misuse of his position, failure to obey a direct order, biased profiling and disobedience of orders.

Police did not provide additional details on the allegations levied against Smith.

Officers were working with Mobile County District Attorney Ashley Rich to investigate the allegations, Rains said.

Smith served as a Mobile police officer for more than 15 years, according to officials. He most recently worked as a supervisor in Precinct 4.