The move was defended as being not about a ban on books being sent into prison, but about parcels being sent in, as giving prisons access to the latter would almost certainly increase the amount of contraband getting into the prison estate.
这个禁令被辩护为不是关于禁止书被送入监狱，而是关于包裹被送进，因为允许后者进入监狱几乎肯定会增加违禁品进入监狱的数量。