Table 6 Heuristics to identify post codes, with entirely fictitious examples, as they would appear in source records and CRIS output
|  | Algorithm to identify post codes < postcode>::= source postcode |  |
|---|---|---|
Source record | Source postcode | CRIS output |
He lives at EN1 5SR | EN1 5SR | He lives at ZZZZZ |
Lives at EN1. No… | None | Lives at EN1. No… |
Lives at EN1 S5R | None identified owing to typographic error | Lives at EN1 S5R |