The stabbing attack in Cambridgeshire has sparked calls for greater security on the rail network.
Earlier, the Transport Secretary Heidi Alexander ruled out installing airport-style security scanners in stations.
Sky correspondent Ashna Hurynag has been looking at what what else could be done to improve safety on trains.
Read the latest: https://news.sky.com/story/politics-latest-reeves-rent-mistake-labour-starmer-asylum-budget-tax-farage-reform-12593360
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