from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
PARTICULAR CUSTOM. A particular custom is one which only affects the
inhabitants of some particular district. To be good, a particular custom
must possess these requisites: 1. It must have been used so long that the
memory of man runneth not to the contrary. 2. It must have been continued.
3. It must have been peaceable. 4. It must be reasonable. 5. It must be
certain. 6. It must be consistent with itself. 7. lt must be consistent with
other customs. 1 Bl. Com. 74, 79.