*1. Wednesbury Principle -
The court does not look at the merits, only the rationality of the process.
*2. Proportionality Rule -
The court examines if the restriction on a right is more than necessary to achieve the goal.
*3. Rules against Bias -
Types of Bias :
Pecuniary Bias : Any financial interest, however small.
Personal Bias : Relationship or enmity with a party
Subject-Matter Bias : Pre-conceived notions or policy rigidness.
*4. Discretion - Discretion must be exercised reasonably and within the law.
Grounds for misuse include:
Mala Fides (Bad Faith) : Acting with personal spite or fraudulent intent.
Irrelevant Considerations: Taking into account factors the law didn't intend.
Colorable Exercise of Power: Using a power for a purpose other than what it was granted for.