FALLING back into a drug habit after being released from custody cost Scott Andrew Porter $1000 in the Proserpine Magistrate's Court on Monday.

The court heard Porter was detained for a search outside the BP service station in Cannonvale about 10.15pm on March 21.

Police prosecutor Acting Senior Constable Tyler Roberts explained police had received information leading them to believe Porter's car "was involved in the supply of dangerous drugs".

"(But) the defendant stated that it was his father's car and that he had been driving it around," he said.

Officers found a small purse containing clip seal bags, a glass pipe "that appeared to be burnt" and a knife in the glove box.

During the search, officers noticed the compartment below the radio was also loose.

"They subsequently removed this compartment at which point they located an electronic scale," Snr Const Roberts said.

Another knife was also found in the driver's door compartment "with the handle facing towards the driver".

Snr Const Roberts said Porter had no reason for possessing the knives, but had told officers the knife in the door "was his pigging knife".

Duty lawyer Cleo Rewald told the court the 33-year-old was on probation at the time of the offence, but was no longer taking drugs and had recently found a job.

Ms Rewald also submitted that the knives were used for fishing and pigging, as Porter had said.

"He's a country boy, he grew up pigging and fishing," she said.

"It's just something he didn't realise was in the vehicle at the time."