Mr Brown and his workmate Mr O'Connor were both dismissed from their jobs at Ballance on December 19 and 20, respectively.
On December 12 - the day before Mr Brown was positively drugtested - Ballance received a complaint from a member of the public who claimed to have observed him and his work colleague Shaun O'Connor smoking pot in a car at Central Parade shopping centre, which the men had gone to during their lunchbreak.
On October 6, 2014 the ERA determined Mr O'Connor had been unjustifiably dismissed and awarded him distress compensation and lost remuneration.
The circumstances surrounding Mr Brown's dismissal were similar but not identical to that of Mr O'Connor.
Mr Brown sought reinstatement to his former position at Ballance and loss of remuneration.