When creating a policy, you may come across conditions which support Regular Expressions.
This gives you the power to define a search pattern rather than an explicit value, providing greater flexibility.
For example, searching for assets which contain a tag value whose length is within a certain range:
Another example if you have multiple tag values which share a similar pattern (ie. a UUID)
Please keep in mind that it is not within the scope of support to assist with the creation or validation of patterns.