The governments initial proposals into setting up NPAS thought that BTP would be the ideal organisation to run NPAS.
Part of the NPCC archives regarding the formation of NPAS shown below. Its shown on the internet.
BTP would save money paying for their own rail patrols if they took over. Will the Home Office offer them more money to run NPAS?
"6.5 British Transport Police (BTP) are one of the very few organisations that have national control rooms. Discussions are therefore ongoing with BTP to establish whether they are able to host the NPAS dispatch facility."