Criminal Law-Penal Code, section 77-Unlawful assembly-Whether common purpose proved-Section 394-Conspiracy to commit felony--Whether intent proved-Section 303 (b)-Found armed at night with intent to break and enter a building-Whether general or particular intent necessary-Section 28 (1) Larceny Act, 1916, compared-Section 303 (c)-Found in possession by night of an instrument of housebreaking-Section 28 (2), Larceny Act, 1916, compared-Whether proof of particular intent necessary-Common purpose of housebreaking-Whether possession of one, possession of all---Common possession-Section 334 (1)--Malicious injury to property-Driver wilfully backing lorry info car-Whether passengers had common purpose.