A vehicle was also given to kick-start the program.
These reserves are now enlisted into the reserve list of the Royal Papua New Guinea Constabulary (RPNGC).
Acting Commissioner of Police Jim Andrews said these eight members are part of their organisation and will abide by their rules and regulations even they are employed by their employer.
Trukai Industries Limited chief executive officer Worthington Eyre said that was the first batch of selected Trukai Security personnel undertook the police reserve course and will serve the community.
"The first part of our commitment to aiding the Royal Papua New Guinea Constabulary is complete but the important work has only begun.
"As a group, Trukai Industries now looks to applying our training in a practical way and playing our part alongside our police forces to improve safety within our community," he said.
He said they plan to increase their strength to 25 reservists.
Three instructors from the police college were in Lae training these reserves who were in fact some former members of the Constabulary.
A brand new Toyota Land Cruiser 10-seater was purchased by the company for these reserve constables to serve the communities.
Commandant of the Bomana Police College Chief Superintendent Perou N'Ndranou said these members were trained in basics of police processes and procedures including arrest powers.
"The members have gone through basic police procedures and the uniform they wear reflects the organisation," he said during the graduation on Friday.
The commandant told the newly trained reserve constables to adhere to rules and regulations of the Constabulary and feel proud of the uniform they wear.