The phrase "a strengthening case" is correct and usable in written English.
It can be used when discussing an argument or evidence that enhances or supports a particular position or viewpoint.
Example: "The new data provides a strengthening case for the proposed policy changes."
Alternatives: "a compelling argument" or "a solid justification".
And just last week, we learned that the amino acid glycine — a key building block of life — had been found in a comet, strengthening the case for extraterrestrial life.
Mr Poulter said such evidence could be used in a tribunal hearing to strengthen a case for consultation to have started sooner.
Although qualitative data are preferred in all of the designs, quantitative data are seen as a possible opportunity to strengthen cases by such data.
The EEF pointed to the build up of global risks, amplified in the UK's case by a strengthening of the pound that makes exports less competitive on world markets.
Finding evidence of phenomena indicative of an adaptive radiation, such as adaptive convergence and an increased rate of morphological evolution strengthens a case for adaptive radiation.
The Ministry of Health, with support from WHO and in conjunction with nongovernment organizations working on kala-azar, has embarked on a number of activities to strengthen case-management.
It's common for law enforcement authorities to enlist informants to help strengthen a case -- the tactic is perfectly legal, even when the informant receives something in exchange.
Though some might dismiss that as a bullshit legal technicality, making sure all the rules are followed is important, even and perhaps especially if the cops are trying to strengthen a case against someone they strongly suspect is guilty.
They believe that imaging referral guidelines (IRG) could strengthen case-based clinical practice by reporting on a real case.
