Often a hard crime to prove, but not here; according to TriCities.com,
In the days before [his client's] appearance in court, [attorney Scott] Pratt is accused of sending two emails advising his client . . . of what she should say on the witness stand.
One email says in part: "they won't have anyone there to testify how much you had to drink. You won't be charged with perjury. I've never seen them charge anyone with perjury, and everybody lies in criminal cases, including the cops. If you want to tell the truth, then we'll just plead guilty and you can get your jail time over with."
Thanks to Tom McKenna (CrimLaw) for the pointer.