Join thousands of others and get the latest Scottish crime and courts news sent straight to your inbox with our daily Criminal Record newsletter.A bully who tried to scare trial witnesses out of giving evidence against him has been caged for 14 months.David Roach, 32, was told the only way of dealing with him was to lock him up because the charges were so serious.Roach, of Elderslie, burst into the witness room and made threatening gestures against Stephen Docherty and Natalie McTiernan.He was