An immigration office worker has been charged with possessing explosive materials for an unlawful purpose.
The 19-year-old suspect lives in the Liverpool area
Callum Atkinson, 19, from Liverpool, was remanded in custody to reappear at Liverpool Crown Court on 23 August.
Prosecutors told the court there was no evidence to suggest that the case is connected with terrorism.
Mr Atkinson, a clerk at the Immigration and Nationality Directorate, was arrested after chemicals were allegedly found at his home.
In court on Friday he spoke only to confirm his name, age and address.
The Home Office earlier confirmed that a staff member had been "suspended pending further police investigation".
Mr Atkinson was arrested on Wednesday following a raid at his Liverpool home.
He is accused of possessing a number of chemicals including sulphur, hydrogen peroxide and hydrochloric acid.