On the heels of the largest human trafficking bust in Canadian history in Hamilton this weekend, author Benjamin Perrin is calling on all levels of government to combat modern-day slavery.

Perrin, who will be speaking about his book, Invisible Chains: Canada’s Underground World of Human Trafficking, at Ottawa’s Booth Building on Oct. 27, said there are alarming cases of Canadian immigrants as young as 13 being sold for sex by criminals.

“This is not only appalling, the fact that these people came to Canada looking for a better life and end up in these situations, but it’s also a tarnish on Canada’s reputation,” he said.

Just last year, Ottawa police arrested a woman who was convicted of living off the earnings of her victims, who were recruited in women’s shelters and sold for sex.

Perrin is waiting on Ontario Premier Dalton McGuinty to “announce immediate action not only on prosecuting traffickers but to provide victims’ (assistance) services.”