If something is missing in your life do you start out thinking it’s just lost or that it’s been stolen? I usually start out with it being lost and until conclusive evidence proves me wrong I stay with such an assumption but here is my criteria (below) for changing the analysis.
SIZE- If the item is relatively large and hard to move then my thief antenna goes up.
VISITORS- When an item disappears after visitors have arrived then calls must be made in a way that tells the truth wherever it might lead.
LOCATION- Is the location the item lost in an area where items are disorganized or is it a well managed area? If it’s a well managed area then a police report might be necessary.
PATTERN- Are there other items missing along the way? If so you must determine if someone has truly taken your belongings or your mind is playing tricks on you.