The phrase "a practice which is" is correct and usable in written English.
It can be used to describe a specific practice that is being referred to in a broader context.
Example: "Mindfulness is a practice which is gaining popularity in modern society for its mental health benefits."
Alternatives: "a method that is" or "a technique which is".
However in an April referendum this year, Maltese voters approved the controversial spring hunting of migratory birds - a practice which is illegal throughout the rest of the EU.
ANNALS OF GOVERNMENT about policing of American writers by the U.S. govt. (principally the F.B.I ., a practice which is apparently continuing.
"We cannot tell communities in Sierra Leone and Somalia to stop a practice which is freely permitted on Harley Street," said Keith Vaz, the chairman of the select committee.
A hundred and eighty-eight years after the sixteenth President's birth, a reappraisal of his… ANNALS OF GOVERNMENT about policing of American writers by the U.S. govt. (principally the F.B.I ., a practice which is apparently continuing.
A majority of the medical men seen by Herald correspondents deplore the fact that division has become a practice which is openly countenanced in large cities of the West, but they say it is not common in New York.
The combination of these four features explains how it is that accounting is a practice which is homogeneous enough to be recognised as autonomous and heterogeneous enough to attract diversity and create difference.
This is a practice which was commonly used in the coalfields, but is becoming more difficult to practice for both technical and regulatory reasons.
The Broadmoor report found: Savile watched and made inappropriate comments when female patients stripped and showered naked in front of staff, a practice which was common in the late 1980s.
Several towns in New York have used zoning ordinances to ban fracking, a practice which was upheld by the state Court of Appeals earlier this year.
For the first time, the proceedings of the Committee were made public in book form; a practice which was continued at subsequent meetings.
When the media then delved further into the issue, stories started to emerge of common practice with a multitude of MPs not disclosing their financial benefactors, a practice which was not punishable under Finnish law.
