In most instances, an employer cannot damage an employee's personal property, e.g. lock. There are sometimes exceptions. For example, if the employer has given reasonable notice to the employee to remove the property and the employee has failed to do so, the employer might be justified in exercising self-help, especially in exigent circumstances. Similarly, if the employer has a contractual right to do so, it may exercise its contractual right in good faith.
Answered on Jun 16th, 2017 at 6:10 PM