Covid-19 testing for workers in managed isolation is again under scrutiny with revelations dozens of staff may not be getting regular swabs.
Ministry of Health records show that a security guard who tested positive last week may have missed about five months of testing before that.
Now it appears there could be up to 60 staff who've also not had regular mandatory testing.
A public health expert is warning the current system is not up to the job and needs an urgent fix before the trans-Tasman bubble opens.
Here's political reporter Charlie Dreaver.
