This is Matt Hancock the ‘Health’ Secretary lying about the new tracing system for Covid-19. Of course, as with the quarantine system for new arrivals which was brought in weeks too late – on the downward part of the curve – there is the problem of explaining why if this is so important it wasn’t introduced earlier. This is lying government Minister Hancock:
Some people will ask ‘why now? Why not launch this programme earlier in the course of the pandemic?’
The answer is because we needed to flatten the curve. Right at the start of the epidemic, we had a contact-tracing system in place but as the virus raged towards its peak, the number of infections grew so large that we needed a national lockdown. That was the only way to get it under control.
Effectively, everyone in the country was contacted and told to stay at home.
Now, we’ve got the number of new infections each day right down and the number of contacts of those who’ve tested positive is small enough that we can be in touch with everyone who we need to. 
That sounds good and maybe some people will believe it.
But the fact is that track and trace was abandoned on March 12.  And the lockdown which this liar describes as a sort of universal isolation scheme was introduced on March 23. Which gave the virus 11 whole days in which to run free.
Matt Hancock is lying is head off.