The hearing was told of three allegations against Heslop.
In documents submitted to the tribunal, seen by BBC Scotland News, Heslop questioned the independence of the investigating officer, given she was a former colleague of Sport Aberdeen chairman, Tony Dawson.
The first allegation was that Heslop failed to follow Sport Aberdeen’s disciplinary process over an employee accused of racist and homophobic language.
This was found to have constituted serious misconduct.
The second allegation – which was partially upheld – was that he failed to comply with requirements to declare gifts, hospitality and conflicts of interest.
A third allegation, that he displayed inappropriate behaviour at a work-related Christmas night out in December 2024, was not upheld
The independent investigator recommended that Heslop be demoted from his role as chief executive officer, receive a final written warning and extra training.
But the decision was taken to dismiss Heslop after he refused to accept the demotion.
Heslop’s legal representative, Michael Briggs, had questioned the timing of the investigation by Sport Aberdeen.
Heslop claimed he was dismissed because he raised questions about a £105,000 payment to outgoing managing director Alistair Robertson, which was not scrutinised by the board.
