The phrase "alleged connection" is correct and usable in written English.
It can be used when discussing a supposed or claimed relationship between two or more entities, often in legal or investigative contexts.
Example: "The investigation revealed an alleged connection between the suspect and the crime scene."
Alternatives: "purported link" or "claimed association."
In al-Utaybi's case, he was declared an "enemy combatant" because of his involvement with Jamaat-al-Tablighi, a vast worldwide missionary organization whose alleged connection to terrorism was duly exaggerated by the Pentagon, which had the effrontery to describe the avowedly apolitical organization as "an al-Qaeda 2nd tier recruitment organization".
In al-Utaybi's case, the only "evidence" that he was an "enemy combatant" was his involvement with Jamaat-al-Tablighi, the vast [and apolitical] worldwide missionary organization whose alleged connection to terrorism was duly exaggerated by the Pentagon, which had the effrontery to describe it as "an al-Qaeda 2nd tier recruitment organization".
FBI Arrests Two Alleged Members of CIA Hack Group Two young men from North Carolina have been charged with their alleged connection to the hacking group "Crackas With Attitude".
Three years later, the Observer newspaper reported the alleged connection.
The alleged connection between Salah Idris and Osama bin Laden appeared unlikely.
Meanwhile, the King's son-in-law, Iñaki Urdangarín, is being investigated for his alleged connection to a corruption scheme.
Maybe a Yale 2L is operating a spreadsheet that lists alleged connections between Trump and the Mob.
David Cameron said Sir John Jenkins, the British ambassador to Saudi Arabia, would examine the Brotherhood's "philosophy and values and alleged connections with extremism and violence" alongside state security chiefs.
Turner and Newall's tried to discredit the film by producing a secret report on the researchers, local asbestos campaigners and industrial injury solicitors – listing their addresses, places they had visited, alleged connections and supposed political affiliations.
Not only has the Enron scandal exposed massive business fraudulence; we even have an administration whose vice-president has alleged connections with a firm granted a fat contract in Iraq.
The younger Mr Bo is studying at Harvard University, one of many details of the Bo family's privileged lifestyle that China's internet users have been picking over with horror and glee since the scandal first broke (the 24-year-old also chugged around Beijing in a Ferrari .The alleged connections between Mr Heywood's death and the Bo family surfaced in the foreign media in late March.
