(AP) — Authorities in Wichita say a man suspected of impersonating a police officer and stopping a motorist was actually a Sedgwick County sheriff’s deputy.

A woman called 911 Monday evening saying she’d been stopped by someone in an unmarked car. The woman said the man took her personal information but did not issue a citation.

But Sheriff’s Lt. David Mattingly said Thursday it turns out the man was a sheriff’s detective who stopped the woman for speeding and having an expired tag. Mattingly says the detective used his discretion and did not issue a citation.

Mattingly also says the detective told him he had shown the woman his badge, immediately identified himself to her and was wearing a jacket with the word “sheriff” on it.