English is a funny language. Sometimes a particular word can either be positive or negative depending on the context or usage. One such word is conviction. A person with conviction is someone with firmly held beliefs or opinions. On the other hand, a person with conviction in their record is someone who is found guilty by a jury of peers! Below is an attempt to use the word both ways in a single sentence.
Lacking in conviction and honesty the fraudster went on a crime spree that eventually resulted in his conviction!