Pavlo Lapshyn was "clearly planning to plant and detonate more devices" says Judge Sweeney.
Lapshyn has returned to court where he is due to be sentenced for the murder of a Birmingham pensioner and for leaving explosive devices near West Midlands mosques after a suspicious package was found in the room.
Ukrainian Pavlo Lapshyn has pleaded guilty to the murder of Birmingham pensioner, Mohammed Saleem, and plotting explosions near mosques.
Police have released images showing Ukrainian student Pavlo Lapshyn preparing for and carrying out attacks in the Midlands.
A timeline leading up to the conviction of Pavlo Lapshyn, who murdered pensioner Mohammed Saleem and set bombs off outside mosques.