June 23, 2015 — Thai police said on Tuesday they had “shown sincerity” and wrapped up the country’s biggest investigation into human trafficking, as rights groups questioned whether they had even scratched the surface.

Thailand began a crackdown on trafficking networks and suspected camps hidden deep in its jungle-carpeted mountains last month following the discovery of more than 30 bodies buried in camps in the south.

Police have arrested 56 suspects – including politicians, police, government officials, businessmen and an army general – and issued arrest warrants for 63.

Aek Angsananont, police deputy commissioner-general, called the probe “the biggest human trafficking investigation in Thailand’s history”.

Around 1,000 police officers, many of them based in southern Thailand, took part in the investigation, Aek said, without elaborating on any ongoing or future probes.

Police have sent 19 cases filled with more than 100,000 document sheets to the Office of the Attorney General which will have until July 24 to decide whether to file charges, Aek said.

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