The GMB union has welcomed Ed Miliband's recognition of zero-hours contracts "exploitation", but said the Labour leader's proposals are "a long way from where we need to get".
GMB general secretary Paul Kenny said the safeguards pledged were "a starting block to get proposals that are fit for purpose."
"Those at the top getting more than their fair share is the major reason for the growth in precarious forms of jobs like zero hours, bogus self-employment, agency and temporary work, very short hours, part time jobs, flexible and casual employment," he added.
More top news
Donald Trump's son-in-law has denied colluding with Moscow during a set of meetings with Russians ahead of the US presidential election.
Chocolate bars being shrunk in size by manufacturers have managed to bump up the total cost of producing the treats, new figures suggest.
Tackling the effects of the emerging drug has been described as one of the 'biggest challenges in policing' for 30 years.