Brits detain alleged ISIS terrorist under 'mental health' law?

Telegraph:

The suspect in the stabbings at Manchester Victoria Station on New Year's Eve has been detained under the Mental Health Act, police said.

Police said the 25-year-old man arrested over the stabbings has been detained under the Mental Health Act on Tuesday evening after being assessed by medical staff.

This comes after a police sergeant stabbed in the incident was praised for showing “incredible bravery” to prevent a suspected terrorist from rampaging through a train station just yards from the scene of the Manchester Arena suicide bombing.

A couple in their 50s were seriously injured in the “frenzied” and “random” New Year’s Eve attack on a platform at Manchester Victoria Metrolink station.

The police officer, who is in his 30s, was also wounded as he and three colleagues rushed to the scene after hearing “a blood curdling scream”.

Police said that a terrorism investigation into the incident "remains ongoing".

Andy Burnham, the mayor of Manchester, on Tuesday said the attack had been deliberately staged close to the site of the Manchester Arena bombing, which killed 22 people in 2017.

Police chiefs and politicians praised the officers’ actions in putting themselves at risk to save the couple and prevent the man, who was dressed in black, marauding through the station just before 9pm. He had been heard shouting Isil-inspired slogans during the attack and after his initial arrest on suspicion of attempted murder.

Asst Chief Constable Sean O’Callaghan from British Transport Police said: “I am incredibly proud of the four officers who were immediately on scene last night, detaining a man who was wielding a knife.

“They were fearless, running towards danger and preventing further harm coming to passengers.” The suspect, aged 25, was caught on video shouting “Allahu akbar” – meaning “God is great” in Arabic – as he was ushered into the back of a police van following his arrest.
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They appear to be taking the position that Islamic terrorists are crazy.  There is some merit to that position, but they are far too dangerous to be treated as a mental health patient.  It is incidents like this one that makes the case for extreme vetting of Muslims from some terror-prone societies.