In the aftermath of the blasts at eight sites across Sri Lanka on Sunday, the existence of a memo warning of a potential attack has emerged. A police source told CNN the memo was dated April 11, 10 days before tragedy struck.
Sajjan Gohel, international security director for the Asia-Pacific Foundation, tells CNN the memo "could be a vital piece in understanding the network that exists inside Sri Lanka."
I think what's also significant is that Sri Lanka's political system may have also played a role in that information not being relayed correctly. The government there is a system of cohabitation like in France," Gohel added.
Gohel says the Sri Lankan President does not have a good relationship with the Prime Minister.
"When it comes to what has transpired in the Columbo, Sri Lanka attacks, it shows that lack of information being relayed, it could result in this mass devastation," he added.