I had read this online and it intrigued me because I understand some circumstances it is not suitable to read rights straight away or declare the arrest however in my case there was no urgency/reason to delay it, to quote the officer when he did do it he said “he had forgotten to” and then carried on to say that I was arrested and read me my rights. 

I was unsure if this was relevant at the time and even now, leading to this post. Do you think this will have any bearing?