GREENFIELD — A free screening of the Frontline documentary “Sex Trafficking in America” will be offered at Garden Cinemas on Wednesday, May 29, at 6 p.m.

The screening is part of a community education initiative undertaken by the Northwestern District Attorney’s Office in collaboration with the Children’s Advocacy Centers of Hampshire County and Franklin County/North Quabbin.

The documentary follows investigations into cases of human trafficking and features interviews with survivors of human trafficking as well as members of law enforcement. The screening will be followed by a panel discussion that will include a survivor of human trafficking, staff members of the two Children’s Advocacy Centers and Northampton Police Captain of Operations Victor Caputo.

Funding for the screening comes from a $60,141 grant from the state’s Human Trafficking Enforcement and Training Program to educate mandated reporters, school staff and medical personnel as well as the community about commercial sexual exploitation of children, the complications of such investigations, and how the community can help keep children safe.

That grant also will fund training for area law enforcement with the goal of developing a regional group of investigators with advanced skills in obtaining digital evidence and the technological expertise to conduct complex human trafficking investigations.