The phrase "authorities in relation to" is correct and usable in written English.
It can be used when discussing the role or involvement of authorities concerning a specific issue or topic.
Example: "The authorities in relation to public health have issued new guidelines to combat the spread of the virus."
Alternatives: "authorities regarding" or "authorities concerning".
In an article entitle Gandhi and Ambedkar, A Study in Leadership, Eleanor Zelliot relates the 'Vaikom Satyagraha' including Gandhi's negotiations with the temple authorities in relation to the event.
We are actively cooperating with the FBI and other authorities in relation to the investigation on the suspect".
We are actively co-operating with the FBI and other authorities in relation to the investigation on the suspect".
"As you'll appreciate, this is still an ongoing investigation and we're working very closely with the Tunisian authorities in relation to this," she said.
"I would like to state for the record that neither Uefa nor I have ever been contacted by any authorities in relation to these particular contracts".
A Scotland Yard spokesman said: "We are maintaining a close and productive relationship with the Latvian authorities in relation to this investigation.
When Congress ceases to have any meaningful authority in relation to the president, the only check on a president's behavior will be elections every four years.
More research is required to investigate how lay people are negotiating the use of these apps, the implications for privacy of their personal data and the possible effects on the doctor patient relationship and medical authority in relation to diagnosis.
Their lack of voting rights is matched by their lack of civil rights overall — including the right to dispose of their property as they see fit, and even the right, as a mother, to exercise authority in relation to children.
On the face of the statute, the scheme was obviously one for the supervision and control of those carriers which, by reason of the nature of their undertaking or business, were subject to regulation by public authority in relation to rates and service.
The tribunal found that the resignation of a teacher at Bournemouth University amounted to unfair dismissal, because that resignation had been triggered by the deliberate undermining of his academic authority in relation to the university's assessment process; such undermining, the tribunal concluded, was so serious as to amount to a repudiatory breach of his contract.
