A common and effective method of sealing containers is by using security tape. Security tape acts as a deterrent to opening an item, leaving markings on the affixed surface and on the tape itself, marking the item as void and opened.
How is it used?
Security tape is applied on the seals of a container. It is fixed in a way that the item cannot be opened without removing the tape before hand. While security tape is relatively strong compared to standard types of tape, it is not designed to physically protect against forced opening, and can be removed quite easily.
Certain types of security tape also include serial numbers and colour coding. These help to identify items that may have been tampered with. Customisations like these add a higher level of protection to the item, providing more security than standard types of security tape.