Stuff are also reporting the police recruit is a woman.
Ryan told the Herald "all recruits go through vetting and a formal interview process to determine their suitability for the role".
However, Stuff say the relationship was only discovered days before the woman's graduation, mentioning it was not picked up by police vetting procedures.
In March of this year, a National Integrity Unit was created to "protect against the risk of corruption and, where appropriate, investigate it".
The unit works closely with the Police Professional Conduct team and help ensure integrity is not destroyed.
This comes after police recruitment was frozen in June after a surge in applications during the nationwide lockdown.
The Herald reported
in June that 4000 people were at some stage of the recruitment process, and about 600 people were applying to join each month.
"Police acknowledge that as organised criminal groups attempt to grow and proliferate, it is important we remain vigilant against attempts to infiltrate, and have measures in place to protect our staff as much as possible."
"However in this instance there was no evidence of an attempt to deliberately infiltrate police" Ryan said.