In September last year, detectives from the Corrective Services Investigation Unit started an investigation under Strike Force Zandona into corrupt activities at correctional centres in Wellington.

During the investigation, detectives received information that a female Corrective Services NSW officer was involved in the introduction of contraband one of the facilities.

Following extensive inquiries, Strike Force Zandona investigators arrested a 34-year-old woman at a home at Wellington about 11am on Wednesday.

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The woman was taken to Wellington Police Station and charged with six counts of agent corruptly receive benefit, two counts of supply prohibited drug, holder of public office misconduct herself and participate criminal group contribute criminal activity.

Police will allege in court that the woman trafficked contraband, including prohibited drugs and tobacco, into a facility in return for financial benefits from the family members of inmates, while employed as a Corrective Services NSW officer.

She was granted strict conditional bail to appear at Wellington Local Court on Tuesday, August 18.

The woman's employment was terminated by Corrective Services NSW in June this year.

Investigations under Strike Force Zandona are continuing.