Who enforces a "landlord right of entry" statue?

The police will enforce entry. If there is an issue the police meet the locksmith there that breaks into the landlords property (not really a break in since they are the owner) and changes the lock.

The Police cannot or will not allow a landlord to force their way into a rental if the tenant refuses entry, to suggest otherwise lacks understanding of civil law, in fact , under that fact pattern the landlord will have to leave or be charged with criminal trespassing, for as long as the tenant has a valid lease

As long as the lease is in effect, the tenant has a superior right to occupy the residence, as such, the police without a court order will not allow the landlord to force their way pass the tenant, the tenant has a right to residency within the unit, its temporary their home, the police would need a warrant, court order to engage the tenant within the home, Because not allowing a landlord into the home is a civil nature not criminal thus out of the jurisdiction of the police

In theory the landlord could go into chancellery court, the only court that can issue injunction, and ask the court to grant an order and police escort to enter the home, but absent a showing the tenant is committing waste/destruction to the rental an injunction will not be granted,

The courts will tell your only legal recourse is to evict in landlord tenant court but as long as the lease is in effect the tenants right to stay in the unit is superior to the landlords right to enter to inspect

Simple call to local police will verify this info

You need to read your lease or rental agreement as most will specify that the landlord can and will make periodic inspections of the property. It usually requires 24 hour notice unless there is a suspected emergency and you do not have to be home at the time. Any challenge to this would have to be through the courts. The police usually will not get involved in this type of problem.

You do. If you believe the landlord illegally entered your residence, then you sue the landlord for trespass. You can do that in small claims if you wish.

The courts.