A firefighter was found dead at his home in Colchester on Monday, shortly after being interviewed by police in connection with a sex abuse investigation.
Police are not treating the case as suspicious. The death has been referred to the Independent Police Complaints Commission because of the police contact.
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ITV News Anglia was given access to police teams trying to curb the supply of class A drugs and limit the damage they do.
Staff received almost 4,400 calls - an increase of more than 20% from the same time last year.
It's to make the public feel reassured and ensure more regular armed patrols are carried out at key locations.