What condition must be satisfied regarding offensive implements under the Summary Offences Act?

The valid condition regarding offensive implements under the Summary Offences Act is that the accused must not have a valid reason for possession. This condition emphasizes the presumption against possession of items deemed offensive unless the individual can provide a legitimate justification for having them.

The principle behind this requirement is to ensure public safety, as certain items can be used as weapons or tools for unlawful activities. If an individual can demonstrate a valid reason—such as possessing a tool for a legitimate trade or activity—that may negate the offence of being in possession of an offensive implement. Thus, the focus is on the accused's intent and circumstances surrounding their possession of such implements.

The other responses do not accurately reflect the legal framework regarding offensive implements and their possession under the Summary Offences Act.