Cavan-Monaghan TD Brendan Smith is calling for a "comprehensive, ongoing and proper investigation" into the disappearance of Jean Tighe.
This Sunday will mark five years since Co Cavan woman Jean Tighe disappeared from a holiday resort in Portugal.
Jean was 38 when she was last seen and has not been seen since.
Deputy Brendan Smith previously arranged a meeting with the Justice Minister for Jean's sister, Leona Tighe, shortly after he took office.
According to Deputy Smith, the Minister has discussed the case with a senior official of An Garda Siochana.
Deputy Smith said the Minister is "anxious" that the authorities here in Ireland vigorously pursue the Portuguese authorities to carry out a comprehensive, ongoing and proper investigation into Jean's disappearance.
Deputy Smith believes the investigation to date has been totally inadequate and it is simply just not good enough: