Former followers say the organisation is still putting lives at risk, despite a policy update.
Police are asking for information about a series of hate crimes at Kingdom Hall in Mart Road.
MP Sam Carling says volunteers in religious groups should be sanctioned for not reporting incidents.
The Kingdom Hall in Minehead was daubed with graffiti associated with the far right.
The Kingdom Hall in Minehead received a threatening letter and dog faeces through its letterbox.
A spokesperson for the Jehovah's Witnesses says the incident has "drawn us together".
Police are appealing for any witnesses of the incident to get in contact.
The child told medics she didn't consent to receiving a blood transfusion even in the event of a medical emergency.
The man had surrendered to police after the blasts, which killed three people including a child.