Am I allowed to care for my Niece?

[WillowB]

Sister & BIL are both key workers. One works out of the home for the NHS and the other is a social worker WFH but often in meetings & case reviews etc. They are struggling with childcare for DN as her nursery is closed until July. I really want to help them out but not sure what's allowed with in the guidelines?

[Siameasy]

Yes you can. Mil/Sil look after our DD. Both key workers here.
And anyway even if it were not allowed, nothing will happen to you. Police will not come round or anything.