The phrase "preferable procedure" means that there is a certain way of doing something that is considered better or more desired compared to other ways. Full definition
``... it is patently obvious to me that the requested Youth Records are relevant to the certification criterion, most particularly to the common issues and preferable procedure criteria. (canadianlawyermag.com)
Justice Blair also deferred to Justice Perell's preferable procedure analysis and, finding that the correct principles were applied, would have upheld it. (thelitigator.ca)
[172] There is no preferable procedure or meaningful alternative to the Superior Court adjudicating the Class Members claims» for negligence, conspiracy, inducing breach of contract, and for an oppression remedy. (slaw.ca)