Anti-Islam activist Neil Erikson has admitted breaching court orders by failing to return a uniform to former employer Toll and publishing online footage and photographs of high-profile confrontations in which his associates are wearing the logistics company's uniforms.

Erikson mistakenly picked up the Koran as he prepared to give sworn evidence in the witness stand in the Federal Circuit Court on Monday, until the court's associate pointed him to the Bible, and later submitted to the court he was "just a simple forklift driver" in a "David versus Goliath" legal stoush against Toll.

Right-wing activist Neil Erikson (right) outside court on Monday. Credit:Jason South

But in between those moments, the court heard Erikson lied to Toll about his criminal past when hired, told Toll he had passed Year 11 when he left school in Year 8 ("Who doesn't lie on their resumes?" he said) and was shown footage of him criticising the company in a video filmed outside the court and uploaded to Facebook on Monday morning.

In a hearing to determine whether a penalty is imposed for contempt of court, Erikson said he failed to return to Toll his uniform after he was sacked last year, that he published video footage of a confrontation with then senator Sam Dastyari in a Melbourne pub, and that he tweeted a news photograph of a friend wearing a Toll shirt during a scuffle outside a speaking event featuring controversial commentator Milo Yiannopoulos.