Barnet said that Davids would become joint Head Coach with incumbent Mark Robson, forming an equal partnership.
In a statement on the club's website, Robson said he was looking forward to working with him:
"I am delighted to welcome Edgar to our club. His experience as a player throughout his illustrious career will be a massive benefit to all our players and I look forward to forming a strong partnership with him".
Robson was put in charge of Barnet back in June, taking over from Martin Allen. But the club has struggled under his leadership. They sit at the foot of the League Two table, with no wins and just three points from their 11 games this season.
More top news
The footage was apparently shot in south London showing a motorist eating a bowl of cereal, and texting whilst sitting in traffic.
The Prime Minister is trying to curb the money laundering that goes on at the highest ends of the London property market.
The average increase across the capital is 9.2% this year - with areas in the east and south of the city up by 15-16%.