RIGHT TO ROAM/ Those who are intimidated by irresponsible cat owners can make recourse to the Civic Government (Scotland) Act 1982,to address their problems,provided they can identify the owners of the uncontrolled felines.
Section 49of the CGSA deals with dangerous or annoying creatures and sub-section 1 makes it an offence for any person who allows any creature (cats included) in their keeping to cause alarm or annoyance in a public place, for which they can be heavily fined.
However most problems occur on private property which is covered by sub-section 2, which states: A district court may, if satisfied that any creature kept in the vicinity of any place where a person resides is giving that person while in that place, reasonable cause for annoyance , make an order,requiring the person keeping the creature within such period as may be specifide in the order, such steps short of destruction of the creature to prevent the continuance of the annoyance,
any person can apply to their local district court for such an order which i believe is relatively simple,