Last August, a female German student was detained on suspicion of poisoning seven students at a university.
German investigators confirmed that a 32-year-old woman with psychological issues was apprehended on Thursday.
“There is a suspicion that the defendant … is not responsible for her actions due to a mental illness,” the police and the prosecutor’s office of Darmstadt said in a joint statement.
Authorities said the student, who is from Mainz, has been detained in a mental facility and has not spoken on the claims.
Since 2017, she had been studying Materials Science at Darmstadt Technical University in western Germany.
Following the event in August 2021, seven persons at the institution were left with “severe health concerns, including indications of poisoning.”
One of the casualties, a 30-year-old student, was first described as being in “critical” condition, meaning she was on the verge of death.
On campus, the 32-year-old is suspected of putting dangerous chemicals in meals and drink.
The lady had most likely entered the university building in question the night before the poisoning event, according to investigators. The youngster “felt persecuted by the employees in question,” according to authorities.
The “harmful substances” suspected of being involved in the poisoning have yet to be identified.