Police were watching and listening as Save Treneski, 33, allegedly organised to sell the popular party drug to single users between February and June this year, despite the fact he was on a community-based intensive correction order for an earlier drug possession charge at the time.

Police will allege they overheard Treneski refer to the individual, one-gram packets of cocaine as "bad boys" and "babies" during the course of the investigation.

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They will allege he often asked potential clients to contact him on the online applications Wickr, Snapchat and Whats App "in an attempt to discretely facilitate the purchase and supply of prohibited drugs".

Treneski was arrested on Monday morning and charged with five counts of ongoing drug supply.

He was remanded in custody and faced Wollongong Local Court on Tuesday.

Treneskis lawyer, Martin Zanolla, said his client had a very limited criminal record and needed his liberty to care for his elderly parents.

He also said Treneski suffered from significant respiratory issues, as well as heart arrhythmia, and was a high risk of contracting COVID-19 if it got into the prison system.

The court heard Treneskis brother, a small business owner, could offer a $2,000 surety to secure his brother's release.

Magistrate Susan McGowan agreed to grant Treneski bail on the condition he live with his parents in Cringila, report to police daily, abide by a nighttime curfew and his brother lodge the surety.

Documents tendered to Wollongong Local Court said police set up Strike Force Irma in January this year to investigate cocaine supply in the region.

They secured a warrant to intercept Treneskis phone calls in early February and will allege they recorded an "extensive number of calls and text messages" which "clearly illustrate the extent of the accused persons drug dealing".

Officers were listening when a male called Treneski on February 15 and told him "well a good friend of mine, you've met him before, is at Wollongong Golf Club with six guys and they are thinking one each".

Police will allege Treneski agreed to meet with the group and supplied each of them with a gram a cocaine.

Detectives continued to monitor Treneski's phone calls, intercepting multiple calls between February and July which they will allege are evidence of drug deals.

On March 6, Treneski allegedly asked a man "those balls, do you want two of them" which police will claim is a reference to an eight-ball of cocaine, or 3.5 grams.

On May 27, a male was recorded allegedly placing an order with Treneski, saying "I need four, but I'll have to go get cash if that's alright".

Treneski replied "yeah too easy, too easy...Four of the babies, four of the bad boys".

Treneski declined to be interviewed by police when arrested.

His case will return to court at a later date.

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