An emotional friend and colleague of Mhlanga, Hlo Madonsela, described her as someone who was "brave and fearless".
"She always used to say 'My happiness always comes first', she was someone who was always able to bring people together,” said Madonsela.
Dladla was described as a family man who worked hard and respected his profession
"Behind the blue badge there is a father with children, brothers and a family. He was like a brother to me, he guided and looked after me, - in-law by name but he was a brother,” said Dladla’s brother-in-law, Reuben Matsimbi.
Both died as they were approaching milestones in their careers; Dladla was close to retirement after 22 years of service while Mhlanga had just received news that she was going to be promoted to acting captain at King Shaka international airport.
They will be buried at the weekend.
Hawks KZN spokesman Captain Simphiwe Mhlongo said members were "still busy with due processes" in relation to the investigation and that the men were expected to appear in court soon.