Key legal question
Whether the public-law appeal was filed within the statutory time limit
Extracted holding
The appeal is deemed late because it could not be proven with certainty that the timely posted parcel contained the appeal brief actually filed later.
Extracted reasoning
The burden of proving timely filing lies with the appellant. Since the contents of the parcel handed to the post on 4 July 2012 were unknown, the court could not verify whether it contained the later brief or whether changes had been made; accepting timeliness would unlawfully extend the appeal period.