What are the parameters of legally allowed spying (monitoring) on a Private citizen by intelligence group(s)?

Question

these groups are subjected to canadian laws. do they have parameters that allow them to overstep their bounderys? (what are the bounderys?) Example. psychollogical corrasion (mind games)? Intentenal planed drugging? isollation enviroment practices or minpulation of situations and, or the use of entrapment? encorragenment of questiable practices by the subject(s)? durations and types of servalinces and tatics used in a private setting desgined to inflict physical and psychological tramma on a subject(s)? intented planing of subject(s) future actions by enviroment minpulation on the advice provided by the subject(s) doctors, family, friends, and placed oppertives? what are the illegal lines that are crossed when these type of practices are clearlly being used by the intelligence group(s) on a subject(s) in canada?

Answer 1

All spy activities against a private person are illegal because it is a violation of the constitutional right to privacy.