This is the third arrest in the probe, which is sending shockwaves through Scotland’s political system.
Sturgeon’s husband Peter Murrell, the former chief executive of the SNP, was arrested as part of the probe in April.
In a statement, the police in Scotland said the 52-year-old woman was arrested as a suspect in connection with the ongoing investigation into the funding and finances of the Scottish National Party.
Murrell has long faced questions over the alleged diversion of six hundred thousand British pounds in SNP donations that were meant to support its drive for Scottish independence.
