The phrase "authorities in common" is correct and usable in written English.
It can be used when referring to shared or mutual authorities among different parties or groups.
Example: "The two organizations decided to collaborate, recognizing the authorities in common that guided their missions."
Alternatives: "shared authorities" or "mutual authorities".
Lewis believes that, minus such a Center, members of society have no Authority in common to which they can appeal in moral debates and decision-making.
Targeted follow up control campaigns were therefore arranged by the Danish food authorities (latest in 2013) and by the Nordic food authorities in a common campaign in 2014.
"The EU stands with the Nigerian people and authorities in our common fight against terrorism," she said.
What do The Pixies, Elvis Costello, and Salam Fayyad, Prime Minister of the Palestinian Authority, have in common?
However, the authority - in common with many others in Scotland - has no policy on rehiring those staff.
Of course, there is precedent for such authority in the common law the writ of assistance.
The law lords said "special measures" used for the witnesses in the Davis trial were unlawful because there was no authority in English common law for their use and nothing in statute.
His noodling ideas about "textile language" and sculptures that are overcomplex and lacking in true authority have much in common with the work of younger artists seen in such current shows as the Turner prize or the Hayward's Mirrorcity exhibition.
Already, just as Neino had feared, two of Kryptos' servers had been mistakenly shut down by authorities in France, a common cyber friendly-fire mishap.
One element of the response which could have been improved in the initial phase was the international humanitarian community's engagement with Haitian civil society and local authorities, and their inclusion in common coordination mechanisms.
