stun grenade

Three years later, a mobile trailer caught fire during a training exercise, when a non-explosive device used to simulate a stun grenade started a fire that engulfed the trailer.

The three-week inquest heard Mr Ciolac, originally from Cernavoda in Romania, entered the police station compound through a sliding gate at about 10:00 BST before a Taser, a baton round and a stun grenade were used, and he was shot in the abdomen minutes later.

The man, who can only be referred to as Officer A due to legal reasons, told the inquest jury at Derby Coroner's Court on Monday that Mr Ciolac was "closing him down" and he had fired his carbine rifle after a stun grenade and a baton round were ineffective.

The court heard Officer B, who was described as the more experienced firearms officer of the two, deployed a stun grenade and then a baton round to try to stop Mr Ciolac's advance.

"He just walked through the stun grenade - there was no stopping from him," Officer A told the court.