"Butterworth's" Police Law is at least 5 years out of date and as such would not incorporate many aspects of current legislation vis-a-vis the Traffic Management Act 2004 nor PCN regulations amended in 2007.
Here is the Operational Guidance to Local Authorities: Parking Policy and Enforcement (issued 2008)...
http://www.dft.gov.uk...kingenforcepolicy.pdf
The information required for a PCN is listed in section 8.40
The information it is recommended to also record (such as colour) is listed in 8.41