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The Buckeye Police Department is under investigation after city officials received an anonymous letter in September alleging misconduct and personnel problems.

The person sent a letter in September to the city manager claiming a few police officers engaged in bad, and criminal, behavior.

Those allegations include changing crime statistics to look better on paper, as well as personnel problems within the department.

The city decided to investigate those allegations and hire a private, independent investigator.

“It’s definitely a challenging situation since the allegations came in anonymously so it’s difficult without any documentation," Annie DeChance, Buckeye spokeswoman, said. "So it’s difficult for us, or even our independent investigator, to try to research and find out what’s going on.”

Buckeye Police Chief Larry Hall could not comment on the allegations. He said in a statement he supports the decision to investigate and "in the end is confident the truth will prevail."

An Arizona Republic article raised points about the qualifications of the investigator, Burley Copeland.

DeChance said the city has confidence in the independent investigation.

“The focus needs to be on discretion and confidentiality and that’s one of the reasons besides his law enforcement experience that led us to choose him as our investigator for this situation,” she said.

The private investigator is a former Arizona Department of Public Safety lieutenant who was with the agency until 2016.