An armed gang wore black robes as disguises during a robbery at a jeweller's shop – making them look like the bad guys in Harry Potter.
Dean King, Anthony Wheeldon, and Connor Willis were jailed for more than 32 years on Tuesday (November 30).
The trio were among the raiders who targeted Walker the Jeweller in the Scottish city of Dundee.
CCTV footage of the robbery on September 23, 2019, shows two of the gang members earring the flowing black robes, reminiscent of JK Rowling's monstrous "dementors".
King, dressed in a shirt and tie, first stands in the doorway of the jeweller in Union Street while a shop attendant holds it open.
He then makes a show of stopping in the doorway and bending down to tie up his shoelaces while the worker is still holding open the security door, leaving it vulnerable.
In that moment, the two robed men fling themselves out of a car and charge with axes into the shop.
Advocate depute Ashley Edwards QC told the High Court in Edinburgh that a stolen Ford Kuga drew up in the street and the raiders emerged from the vehicle after King gained entry and immediately bent down to tie a shoelace, Daily Record reports.
The prosecutor said: "They were carrying an axe, a hammer, a mallet and a bag.
"As they entered the store the men shouted and swore and brandished the weapons at the members of staff."
One customer, Gordon Morris, lifted a stool above his head and began swinging it towards the intruders but was hit on the head with the mallet.
He fell backwards and struck his head on a wall and his attacker stood over him brandishing the weapon.
The robbers began smashing display cabinets but a member of staff activated an anti-robbery device which filled the premises with a thick fog.
They managed to get away with two Rolex watches worth £17,850 and caused about £3800 worth of damage.
Mr Morris had a cut to his head closed with paper stitches following the assault on him.
The court heard that Willis was part of a gang that staged another, earlier violent robbery at a jewellery business in Edinburgh when the owner bravely fought back despite being struck with an axe.
King, 28, Wheeldon, 40, and Willis, 24, previously admitted carrying out the robbery at the Dundee jeweller on September 23 in 2019 while acting with others.
Willis also pled guilty to taking part in a raid on Miena Jewellery in Edinburgh's Great Junction Street on August 31 that year.
A judge told the trio that the offences "involved ferocious and frightening violence which followed sophisticated planning".
Lord Beckett told them: "For such serious, sophisticated and violent crimes severe sentences are called for in order to protect the public from you, to punish you and to seek to deter you and others from such crimes."
He jailed King for nine years and two months, Wheeldon for 11 years, and Willis for 12 years. Wheeldon will be under supervision for a further four years and Willis for five years.
All three were given driving bans as vehicles were involved in the commission of the crimes.
King was disqualified for seven years and four months, Wheeldon for 11 years, and Willis for nine years and two months.