Book one, Title one
(1) Execution of rights and obligations arising from civil law relations must not interfere with the rights and legitimate interests of other persons without legal grounds and must not be in conflict with good morals.
Book one, Title four
A legal act is invalid if the content or the purpose thereof violates or evades the law or is inconsistent with good morals.
A legal act is invalid if a person acted in error arising from a circumstance decisive for its creation and the person to whom the legal act was addressed gave rise to the error or had to be aware of the error. A legal act is also invalid if the error was caused by the other person intentionally. An error as to motive shall not make a legal act invalid.
Book six, Title one
Every person is obliged to act in such a manner so that no damage to health, property, nature and the environment occurs.
Book six, Title one, Chapter one
(1) Every person is liable for the damage he/she causes by a breach of a legal duty.
(2) Damage is caused by a legal entity or a natural person if it is caused during their activity by persons who they authorized to undertake the activity. Such persons shall not be liable for damage so caused under this Act; their liability under labour law shall not be hereby affected.
(3) Any person who proves that he/she did not cause the damage shall be released from liability.
Book six, Title one, Chapter two
Liability for damage shall be also borne by a person who causes damage by intentional immoral conduct.
Book six, Title one, Chapter three
(1) Compensation shall cover actual damage and what the aggrieved party lost (lost profits).
(3) Damage shall be compensated in money; if the aggrieved party so requests and if it is possible and practical, the damage shall be compensated by restitution.
The amount of damage to the property shall be determined according to the price at the time when the damage occurred.
For reasons worthy of special consideration, the court shall reasonably reduce the compensation. While doing so, it shall take into account, in particular, how the damage occurred, and the personal and material situation of the natural person who caused the damage. The court shall also take into account the situation of the natural person who suffered the damage. Compensation may not be reduced if the damage was caused intentionally.
Book Eight, Title Two, Chapter five
(2) A contractual fine may only be agreed in writing and the agreement shall set out the amount of the fine or the method of its determination.
Book Eight, Title One, Chapter six
(1) If a contract is made for an indefinite period of time and the subject of the contract is the obligation to perform a continuous or repeated activity or the obligation to refrain from a certain activity or to tolerate a certain activity and the manner of its termination does not follow from the law or from the contract, then the contract may be terminated at the end of a calendar quarter with a notice period of three months.
(2) Such termination is ineffective in respect of an obligation to refrain from a certain activity if it follows from the nature of the obligation or from the contract that the obligation is unlimited in time.