National Housing Trust Act - National Housing Trust (Contributions) Regulations,1979 - Whether an employer-employee relationship exists between security guards and the 1st Defendant –Whether 1st Defendant liable to Claimant for employer’s contributions - Whether the 2nd Defendant is a responsible officer within the meaning of the Act - Whether remedies barred due to laches, estoppel, waiver and/or acquiescence - Whether declaratory relief may be granted without retroactive effect.