The phrase "authorities rely on" is correct and usable in written English.
It can be used when discussing the dependence or trust that authorities have in certain information, resources, or systems.
Example: "In times of crisis, authorities rely on accurate data to make informed decisions."
Alternatives: "authorities depend on" or "authorities trust in".
The authorities rely on almost 20,000 UN peacekeepers to do the job.
Currently, many permitting authorities rely on compliance with well-known codes and standards as evidence of a safe design.
Instead, the authorities rely on reports from doctors that people are seeking medical attention for unusual symptoms.
In many wire-tapping cases, the authorities rely on the element of surprise and control the release of information to avoid compromising the investigation.
Some countries also fear that a harsh crackdown on Islamists could further alienate the Muslim communities that authorities rely on to receive information about radicalized individuals.
Casinos are high-risk venues for washing the proceeds of crime and authorities rely on management to assist them in identifying suspicious transactions.
Basu said authorities relied on the support of the public to successfully confront the threat.
As the Guardian revealed yesterday, the UK authorities relied on Bangladeshi intelligence despite well-documented accounts of their use of torture.
To justify the surveillance dragnet, the federal authorities relied on the Patriot Act, which Congress passed after the Sept. 11, 2001, terrorist attacks.
These assertions might find much more support in the authorities relied on by the Court and others if the issue under discussion was not the undefined categoryexpropriationbut the clearly discrete issue of adequate and effective compensation.
Every report shall contain a concise but comprehensive statement of the facts in the case, the opinion of the commissioner or commissioners submitting the report, and a citation of the authorities relied on in support of the opinion.
