Kym Worthy : What happened when we tested thousands of abandoned rape kits in Detroit

Kym Worthy at TED@UPS  (transcript)
What happened when we tested thousands of abandoned rape kits in Detroit
Summary
This is a shocking story for me who is Japanese. It's too horrible to understand.
In the first place, I didn't know about the words rape kits. 1)
It's used by almost women who are rape victims to track perpetrators by testing DNA. It's accurate if it's tested.
It's a surprising thing that the rape kits is developed and 1) there are many women who use it. 2)
However, those rape kids haven't been tested for a long time 3) and those were abandoned. 4)
It's stopped testing by police and people having authorities because some of them are perpetrators. 5)

When the speaker’s team found thousands of abandoned rape kits because of scandals of their boss, they started testing those. 
And then testing DNA is really accurate. A person who had raped two more women could be caught but a man who had raped ten, and 861 more women were also caught. 6) They were with impunity. It means that perpetrators commit many times and victims are increasing.

A system is corrupt. Even if the problem of rape kits being stockpiled is found, it’s not solved. 7)

Words in this story
inclusive /adj/ including or covering all the services, facilities, or items normally expected or required.
exclude /verb/ except, remove
impunity /noun/ exemption from punishment or freedom from the injurious consequences of an action.
exemption /noun/  exception, dispensation, exclusion