Use "lawful means" in a sentence

1. Everyone should learn how to defend himself by the lawful means.

2. Lawful means of evidence include, inter alia, information contained in the administrative case file of the person concerned

3. Walk Circumspectly - Our word circumspect, from the Latin circirmspicio, signifies to look round about on all hands; to be every way watchful, wary, and cautious, in order to avoid danger, discern enemies before they come too nigh, and secure a man's interest by every possible and lawful means.