The arrest was carried out as part of Operation Lakefront.
It was conducted by detectives from the Anti Corruption Unit attached to the Garda National and Economic Crime Bureau in Kildare.
It's the second arrest as part of the investigation.
The woman picked up for questioning today has been taken to Naas Garda Station.
Go-Ahead Ireland to Create 400 Jobs Boosting Public Transport in Wicklow
Pat Devlin Calls Time After Four Decades With Bray Wanderers
Wicklow Musician Earns National Business Award For Merging Traditional Culture And Wedding Celebration
Wicklow CYPSC Launch Detailed Project Underlining Importance Of Sleep For Children
Visit Wicklow Digital Campaign Takes Home Prestigious IDI Award