The phrase "acted on a tip" is correct and usable in written English.
It can be used when referring to taking action based on information or advice received, often in contexts like law enforcement or journalism.
Example: "The police acted on a tip from an anonymous source, leading to the arrest of the suspect."
Alternatives: "followed a lead" or "responded to a tip-off."
This week, Mr. Papandreou took pains to say that the letter-bomb plot was not linked to the powerful parcel bombs suspected of having been shipped from Yemen last week by Al Qaeda in the Arabian Peninsula and intercepted in Britain and Dubai when officials acted on a tip from Saudi intelligence.
In Mr. Kozlowski's case, investigators acted on a tip.
Mr. Budi said the investigators acted on a tip from the public.
Stephen Ladeck, a special agent overseeing the case, said investigators acted on a tip.
Gen. Tareq al-Yousef, the police commander of Anbar Province, said the police acted on a tip from a resident.
Lucas Guttentag, director of the American Civil Liberties Union's Immigration Rights Project, said he was not comforted by the news that border guards had acted on a tip from an informant.
The FBI acknowledged Friday that it had failed to act on a tip about 19-year-old Nikolas Cruz, who has since been charged with 17 counts of premeditated murder following the mass shooting at Marjory Stoneman Douglas High School.
In December 2010, Razzak and other officers acted on an informant's tip and crowded into a narrow hallway in front of an apartment in the Henry Hotel in downtown San Francisco.
The rediscovery, revealed by the newspaper Die Zeit, came to light after Paula Felix-Didier, curator of Buenos Aires' Museo del Cine, acted on a tip-off from a former film club director that the full-length version had been gathering dust in the museum's archive since the early 90s.
The Islamic authorities have said they acted on a tip-off, but have refused to reveal the nature of the complaint.
BBC Home Affairs correspondent June Kelly said the police had acted on a tip-off from the local community that suggested the girl was on that particular flight.
