During the search, police found a cut-down pump action shotgun hidden under a chest of drawers in Edwards' bedroom and near it were 20 rounds of shotgun ammunition.
Also found in the bedroom was another 50 rounds of .22 ammunition.
Edwards does not hold a firearms licence.
On March 6, 2017, police obtained a production order to search Edward's cellphone and text communications showed evidence of him dealing methamphetamine and cannabis.
That included offering to supply P and conspiring to supply the 5.5 grams of methamphetamine with a total street value of about $3150.
Edwards also conspired with an unknown person to supply 538 grams of cannabis with an estimated value of about $5700.
When earlier confronted by police Edwards said the shotgun and ammunition were for his protection.
Judge Paul Mabey, QC, remanded Edwards in custody pending sentencing on April 13,
The judge told Edwards he was making no promises what the sentence would be, but called for a home detention report.