The success of research lies in implementation. Scientific researches are no exception. As we all know, research requires public co-operation to acquire data. The co-operation of the public is firmly built on their trust. Thus public trust is an underlying indispensable feature in all researches. Speaking of science, it hasn't always been easy for scientists and scientific researchers to proceed freely with their work. Since public trust is something that boosts up scientific research, it would be really great to know about the factors that impact this so-called public trust. Though many previous studies have worked on many other factors, here, age-group of the public has been scrutinised as a factor which controls their trust. Even it hasn't been paid a lot of attention, it is a notable discovery worth studying and is even more, with the literacy pattern observable in Sri Lanka. Getting hold of this valuable finding would be ample to turn the tide and propel scientific researches and projects towards victory.