Singh was an off-the-books 31-year-old farm labourer who bled out last June after being dumped outside his hut with his arm, severed by wrapping machinery, placed beside him.
Antonello Lovato was arrested last July on suspicion of causing Singh’s death, via a massive haemorrhage, by manslaughter.
Investigators believe Singh would have likely been saved if he had been promptly assisted.
The father, son and firm that employed Singh off the books face charges of gang mastering, aggravated exploitation and employing and exploiting foreigners without a residence permit.
The arrest warrants were served following an investigation that was opened on June 17, on the day of the fatal accident.
The other off-the-books workers employed by the pair at the time of the incident, who provided key evidence, were granted special residence permits at the request of Carabinieri police in Latina.
The Lovatos are accused of employing more than three irregular workers between August 2022 and June 2024.
They allegedly exposed them to situations of grave danger and paid them meagre salaries without granting them an adequate number of days off.
Authorities have also placed their farm under judicial administration.
ANSA
