New figures show that Gardai logged almost 300 incidents of human trafficking on their databases since 2017.
However, only half of those have been prosecuted, prompting calls for an independent review.
The State's human trafficking watchdog has raised concerns about the low conviction rate.
The Irish Human Rights and Equality Commission (IHREC) has also expressed concerns.
Figures include adults and children trafficked to Ireland for labour exploitation, sexual exploitation, and for prostitution.
Last year, the first human trafficking conviction in Ireland was handed down ,when two women were jailed for smuggling women from Nigeria into the country where they were forced into prostitution.
IHREC published the first ever National Anti-Trafficking report last month, compiled with the participation of survivors, who offered their unique perspective and understanding of the system.
