"Albus didn't like me before. He might not like me again. But he will be safe."
-- Harry Potter (CC2.10)
Harry Potter insists that Professor McGonagall monitors his son Albus’s movements with the Marauder’s Map. McGonagall argues with him about the wisdom of depending on the centaur Bane’s words or relying on advice from a portrait “A headteacher’s portrait is a memoir. It is supposed to be a support mechanism for the decisions I have to make. But I was advised as I took this job to not mistake the painting for the person.” (CC2.10).
Harry threatens her with “the full force of the Ministry” if she does not comply with his instructions. Even Ginny is shocked at these outbursts (CC2.10).
After the previous event, early September 2020
This event takes place during the Roseless timeline, as described in the essay "Albus Potter and the lesson in Quantum Mechanics" by Nick Moline.
Parents always know what's best for their children.... Discuss! The point of view will vary widely between people who work in schools, parents, students, non-parents etc. Harry's seeming headlong rush into cruelty towards the Headmistress and his own child is shocking, even though it stems from his distress and wish to protect Albus. However, even Ginny doesn't know which way to look as he is speaking (CC2.10).
From the Web
The theatre production opened in the West End of London at the Palace Theatre on 31 July 2016, with Jamie Parker in the role of Harry Potter, Sandy McDade as Minerva McGonagall and Poppy Miller as Ginny Weasley: Harry Potter and the Cursed Child, Parts One and Two
Harry Potter Wikia: Marauder's Map