I live with my grandmother, can the bailiffs take her possessions if she has no receipts?

The bailiff may only take control of goods that belong to the debtor.^[1]

If the bailiff takes control of goods belonging to someone else, then the owner does not necessarily need receipts as proof of purchase, especially if the goods are vintage or antique. The owner may make a third-party claim to controlled goods.^[2][3]

Bailiffs must exercise caution when taking control of goods especially when it is obvious, or ought to be obvious to the bailiff that the goods are not those of the debtor, otherwise the bailiff is liable for the costs of the third-party claim,^[4][5][6] together with damages for the illegal interference with goods.^[7]

Bailiff may threaten to take control of someone else's goods to coerce them to "voluntarily" pay the debt on te debtors behalf.^[8]

^{[1] Paragraph 10 of Schedule 12 of the Tribunals, Courts and Enforcement Act 2007

[2] Civil Procedure Rule 85.4

[3] See Making a third-party claim to controlled goods

[4] Civil Procedure Rule 46.5

[5] Civil Procedure Rule 46.5

[6] Practice Direction 46.5 Rule 3.1

[7] Section 3 of the Torts (Interference with Goods) Act 1977

[8] See The bailiff wrote on a receipt or document you paid voluntarily}