What does "thereof" mean?

"Everyone has the right to life, liberty and security of the person and the right not to be deprived thereof except in accordance with the principles of fundamental justice."  

That is section 7 of the Canadian Charter of Rights and Freedoms, which is part of Canada’s Constitution.  Can you guess what "thereof" means? 

“Thereof” is one of those “there-words” that can make understanding legal documents written in English difficult for the general public and for lawyers whose main language is not English.

“Thereof” means: → “of (what was mentioned before)”  

Examples:

• “The company and all subsidiaries thereof” = “The company and all subsidiaries of the company”
• “The company's agreements and all sections thereof” = “The company's agreements and all sections of the company's agreements”

So section 7 of the Canadian Charter of Rights and Freedoms could be rephrased  as:  

"Everyone has the right to life, liberty and security of the person and the right not to be deprived [of that right] except in accordance with the principles of fundamental justice." 

“Thereof" isn't limited to legal writing: it is also used idiomatically in general English in the phrase "the lack thereof". This phrase is used to emphasize the absence of the thing mentioned before. For example:

•  "Leadership, or the lack thereof" is a book about the absence of leadership.
• "Love, or the lack thereof" is a song about the absence of love.