david shipman, bbc news. our health editor, hugh pym, join me now., for schools to get back, we need a good track—and—trace system in place, and tonight health secretary matt hancock has been reinforcing that. yes, from june the 1st, the government says for england there will be a full testing, tracking and tracing system up and running, and a key bit which people will not be familiar with is that, if somebody tests positive for the virus, contact tracers will get in touch with people they may have been in contact with over the previous week and had meetings with and, depending on the risk, they will be told, those contacts, to self—isolate for 14 days. that is more specific advice than people have had up to now that it's a bit unfamiliar, or it will be, and matt hancock saying this will be necessary if those people play their pa rt necessary if those people play their part so that restrictions can possibly be eased for everybody else. this comes on a date with continued debate about why the testing and tracing system was dropped in march, which has