Christian Watt, of Hamilton, pleaded guilty to charges of drug trafficking and criminal damage in Warrnambool Magistrates Court. He will serve an extra 58 days on top of the 32 days already spent on remand in custody.

Between May and July this year, Watt defaced several public spaces in Hamilton, including an electricity box on Gray Street, the Hamilton underpass and the office of Wannon MP Dan Tehan. 

Police prosecutor Senior Constable Paul Harris said Watt graffitied several words -  including “gay”, “bisexual” and “I miss you” - in black, red and white paint. 

Watt told police that he was attempting to provide a positive and thought-provoking message, and that he didn't know the building was the office of a member of parliament.

Watt was arrested in relation to the graffiti and bailed in June. 

On July 28 he was intercepted by police walking in Hamilton and a search of his mobile phone revealed he was arranging to sell 4.7 grams of cannabis to a minor. 

He was arrested and put in the rear of a divisional van, where he became aggressive and kicked a side window of the vehicle, causing damage. 

Senior Constable Harris said a further search of Watt's phone found extensive evidence of drug trafficking, including a tick list.

He said messages revealed Watt had been buying and selling cannabis, ice, ecstasy and MDMA.

He had also been picking and selling magic mushrooms. 

Defence lawyer Jack Rabl said the text messages were between Watt and four other males, all of whom were his friends.

He said Watt purchased the drugs in large amounts to save money and sold them to his friends as party drugs.

Mr Rabl said despite being a suitable age for a youth justice centre, Watt was remanded in custody in police cells at Geelong and Warrnambool. 

He said the 32 days had been distressing and a huge wake up call.