18/10/2016 11:01 BST

Houses Of Parliament Rape Claim Accused Named As Tory MP Aide Sam Armstrong

Armstrong was said to have been drinking with a group of Tory advisers in a bar within the Palaces of Westminster.

Conservative MP Craig Mackinlay’s chief of staff has been named as the young man arrested over an alleged rape in the Houses of Parliament. 

Sam Armstrong, 23, is accused of taking a woman to the South Thanet MP’s office after a drinking session in a bar within the Palaces of Westminster in the early hours of Friday morning.

A source told The Sun: “There were a group of Tory advisers and female guests drinking there all night. Some were very drunk indeed.”

Sam ArmstrongTwitter
Sam Armstrong, the chief of staff to Conservative MP Craig Mackinlay, has been arrested on suspicion of rape

According to reports the group had been drinking in a taxpayer-subsidised bar on the House of Lords’ terrace overlooking the River Thames before the incident. 

Mackinlay’s parliamentary office was raided by police on Friday and sealed off as a potential crime scene. Armstrong has since been bailed until mid-January while police make “further inquiries”. 

A spokesman for Mackinlay told the Evening Standard: “On Friday morning Mr Mackinlay was made aware of an allegation against a member of staff.

“Following a request made by the police and Parliamentary officers, he granted full access to his Westminster office.

Gareth Fuller/PA Archive
Mackinlay has said he granted police 'full access' to his Westminster office after being contacted about the incident 

“Mr Mackinlay is currently awaiting further information from police,” he added.

A Metropolitan Police spokesman said detectives from the sexual offences, exploitation and child abuse command are investigating the incident which occurred during the early hours of October 14. 

On the same day, the spokesman said, police arrested a 23-year-old man on suspicion of rape. 

Steve Parsons/PA Wire
The incident is alleged to have occurred in the Houses of Parliament

A House of Commons spokesman said: “We are aware of an incident on the parliamentary estate which is being investigated by the Metropolitan Police Service.

“Parliament is working closely with the police on their investigation and we cannot comment further while this is ongoing.”

Armstrong was last year drawn into the ‘Tatler Tory’ bullying scandal that led to the suicide of Conservative activist Elliot Johnson.

He was also said to have attempted to blackmail a senior minister who was having an affair, an allegation he denied.

No action was taken over that claim, but Armstrong was barred from last year’s Conservative Party conference along with two others while it was investigated.

Armstrong is yet to comment on the rape allegation.