In
People v
Harris, Madam Caro Corrigan of the Supreme Court of California wrote:
"A verdict of deliberate and premeditated first degree murder requires more than a showing of intent to kill. Deliberation refers to careful weighing of considerations in forming a course of action; premeditation means thought over in advance.
The process of premeditation and deliberation does not require any extended period of time. The true test is not the duration of time as much as it is the extent of the reflection. Thoughts may follow each other with great rapidity and cold, calculated judgment may be arrived at quickly."
Similarly, in
Berube v
State, the District Court of Appeal of Florida with Justice Douglas Wallace presiding defined pre-meditation as:
“ … more than a mere intent to kill; it is a fully formed conscious purpose to kill. This purpose to kill may be formed a moment before the act but must exist for a sufficient length of time to permit reflection as to the nature of the act to be committed and the probable result of that act."
The concept of "pre-meditation" can be applied to crimes other than murder e.g. rape, assault, etc.