• In 2002, the Social Democrats come to power in Sigtuna municipality.
Anders Johansson takes over as chairman of the municipal board.
His election promise is that more homes will be built in the municipality.
• In 2003, Anders Johansson (S) had a meeting with Peab Bostad where the future construction projects in the municipality are listed.
Peab secretly gets insight into the municipality's plans.
• In 2005, Peab starts sponsoring the football club Valsta Syrianska IK.
• In 2008, Anders Johansson, Chairman of the Municipal Board, will travel to Istanbul together with the CEO of Peab Bostad, Tomas Andersson, and the Chairman of Valsta Syrianska IK, Ismet Karademir.
A private trip, says the former municipal councilor.
• 2009 Peab becomes Sweden's largest construction company.
In Sigtuna, Peab is responsible for the vast majority of construction projects.
• In 2012, the head of administration in Sigtuna sounds the alarm that Valsta Syrianska IK has not paid the rent for the municipal football pitches.
Despite this, they are allowed to continue playing.
• In 2013, Anders Johansson leaves politics and his assignment as chairman of the municipal board.
• In 2013, Peab begins to investigate the business in Sigtuna.
• In 2016, Sigtuna municipality decides to evict people who live in a clubhouse where illegal gambling activities are suspected.
In addition, the tenants have not paid any rent to the municipality for many years.
Municipal officials send a notifier, but the eviction is stopped by the municipal board chairman Ibrahim Khalifa (S).
• April 24, 2017, two days before Assignment review revealed, Sigtuna municipality decides that two controversial club cottages that the municipality owns in the area by Valsta will be demolished.
• April 26, 2017, Assignment review reveals a suspected friendship corruption in the municipality.
The leadership of the Social Democrats has benefited a party member and entrepreneur in the municipality, Ismet Karademir.
Despite the fact that it is contrary to the current detailed plan and lacks a valid building permit, Ismet Karademir's pizzeria may remain in Valsta center.
Illegal gambling activities are arranged in a clubhouse in the area.
When the municipality is about to evict the tenants, it is stopped by the municipal board chairman Ibrahim Khalifa (S).
Ibrahim Khalifa admits that he stopped the eviction, but says that it happened after a discussion with the municipal director.
Ismet Karademir denies having had any special ties with Ibrahim Khalifa and claims that he had no more or less influence than other people who are involved in association life in Sigtuna.
• On 14 August 2017, one of the clubhouses in Valsta, where the illegal gambling activity is suspected to have taken place, was ravaged by fire and completely destroyed.
• In September 2017, an audit firm is commissioned by the municipality of Sigtuna to investigate the revelations in Assignment review, which shows that the chairman of the municipal board did not have the authority to stop the officials' decision on the eviction.
• In 2018, the revealed friendship corruption leads to the municipal council in Sigtuna not granting the chairman of the municipal board, Ibrahim Khalifa (S), discharge from liability.
Khalifa was chairman of the municipal board from January 1, 2017 - September 21, 2017.