The Napa County district attorney’s office has found no evidence of crimes related to the conflict over the St. Helena Unified School District board of trustees.

Napa County District Attorney Gary Lieberstein dismissed allegations that board members violated California public meetings laws in 2008 and 2009. Lieberstein also said his office found no violation of law related to the awarding of retirement options to certain school employees.

“There is no credible evidence to support the conclusion that any members of the board of trustees, including their management team, took any action that would constitute a violation of any civil or criminal laws within our jurisdiction,” Lieberstein said in a prepared statement. 

Finally, Lieberstein also found "insufficient evidence"  of criminal conduct on the part of those who accused the school board of wrongdoing.

The swirl of accusations are at the heart of a recall effort targeting four members of the St. Helena school board.

In the wake of former Superintendent Allan Gordon’s resignation, the board awarded the job without a search to Gordon’s assistant superintendent, Robert Haley. Parents who had wanted the board to conduct a full search have accused the board of mismanaging the superintendent hiring and of improperly granting generous benefits to Gordon and others.

School board members deny wrongdoing, defend the decision to hire Haley and say the pension decision was fiscally sound.

Earlier this year, a group of parents met with school board officials, demanding their resignation and stating they believed a criminal probe was warranted. The clash led to both sides asking the district attorney’s office to investigate.

Earlier this month, supporters of a recall election secured enough valid signatures to force all four board members — Ines DeLuna, Cynthia Lane, Carolyn Martini and Cindy Warren  — to face a recall vote.

Correction: An earlier version of this story stated that prosecutors "found no criminal conduct" on the part of recall proponents.