The Tamil Nadu Pollution Control Board is seeking police protection for lifting samples of waste discharged from the Pulianthope slaughter house.

Sources said that the Board wrote to the police after one of its engineers was threatened by some men on Wednesday morning when he had gone to Pulianthope to collect samples of the discharge from the abattoir.

This follows the directions of the Southern Bench of the National Green Tribunal in a case pertaining to the pollution caused by the abattoirs.

The TNPCB officials managed to collect samples at the Saidapet and Villivakkam slaughter houses.

“He collected 2.5 litres of the sample from a nearby stormwater drain and had travelled a few minutes when four men on two bikes followed him and grabbed the sample. They threatened and abused him asking him how he had dared to collect samples when even Corporation employees hesitated to enter the premises of the slaughter house,” said an official.

One of the men had told the officials that he was from an association and even furnished a mobile number, which turned out to be a fake.

Federation of All Meat Traders Association General Secretary Anbuvendan said that meat traders will normally not have any problem with government officials taking samples.

“Sometime back, a political party had entered the premises of the abattoir and there was a problem. After that, traders are vary. If they had approached the Association, there would not have been any issue,” he said.