Ketchum police admitted Friday to mishandling evidence in an attempted murder case that prosecutors were forced to drop.

Police said they're overhauling their policies.

"The issues in evidence handling were not systematic," said Ketchum Police Chief Cory Lyman in a press release Friday.

Problems were limited, he said.

But changes at the department aren't entirely acute.

Here's how Ketchum Police said they're changing, according to the press release:

• Teach officers how to handle evidence

• Train an evidence technician

• Secure the evidence room

• Audit evidence

• Dispose old evidence

The Idaho Attorney General's Office also found Ketchum Police fumbled the attempted murder investigation, according to a redacted June 13 report from the state.

Ketchum resident Robert Dreyer told police his ex-girlfriend, Deborah Reimer, fired two shots at him almost a year ago when he was taking a shower.

Reimer was arrested and charged with attempted murder.

Prosecutors let Reimer off because of evidence handling errors.

Det. Ken Martinez, lead investigator on the case, was also romantically involved with Reimer's niece, Bridgette Hollenbeck, ac-cording to the IAG report.

Martinez, who the report states no longer worked for the Ketchum Police Department at the time of his interview, wouldn't answer IAG questions about the relationship, the report shows.

The report's findings state "However, no evidence was found that suggested Det. Martinez improperly influenced the investigation or intentionally mishandled evidence seized during the Reimer investigation because of his relationship with Reimer's niece."

Chief Lyman and Blaine County prosecutors asked the Idaho Attorney General's Office to investigate.

"I am confident that the problem has been properly addressed and corrected," said Blaine County Prose-cutor Jim Thomas.