A Henlow man has been jailed for more than four years for drug and driving offences after a police chase last year.
Police believe a laser pointed at a plane approaching Luton Airport last week may have come from the Hitchin area.
A 22-year-old man has been sentenced to 10 years in prison after being found guilty of causing death by dangerous driving following a head-on collision at 110mph with a grandfather near Hexton.
A man with connections to Hitchin is wanted by police for failing to attend court.
A 29-year-old man has been jailed for harassing his ex-partner, who lives in North Herts and "truly believed he was capable of killing her".