Last year, several incidents where trucks were pulled over by criminals posing as police officials using blue lights were reported.
Most of the cases occurred when the trucks had been driving out of Port Elizabeth on delivery.
“Due to the nature of the crime, the Provincial Organised Crime Investigation Unit has taken over the case and is running with the information.
“As part of the initial investigation, we are going to see if they are linked to other hijackings,” Beetge said.
ESAR Transport Company Managing Director, Peps Pretorius, said the company was shocked by the cold-blooded murder.
“We are all devastated by this. We are all so shocked and had a prayer meeting after hearing the news. I personally spoke to his wife this morning who is traumatised,” he said.
Pretorius said the company had been doing deliveries between Port Elizabeth and Gauteng for about 30 years, with no incident in the Bay.
“He arrived in Port Elizabeth on Monday and the load was placed on the truck. It is mostly scrap copper. He was driving back when he was pulled off the road,” he said.
“I suspect that they were after the copper. Just before the police caught them, the suspects were preparing to open the load (of copper) to take it off the truck.”
“He (Mnisi) had been working for us for more than 12 years and was such a nice guy. He was one of my best drivers and everyone got on very well with him. Most of the people in the office have been crying after hearing the news.”
Asked about the signal jammer, Pretorius said he was aware of some instances where hijackers used such devices to avoid detection.
“We, however, have found a way to work around it and this is why the jammer did not work in this case,” he said.
Detectives are following up on leads and more arrests are expected.